This is the Vocab24 daily quiz of 25 July 2026, the same 30 questions the app served that day, on the day's vocabulary and editorial. One mark for a right answer, minus 0.25 for a wrong one; the explanation opens as soon as you tap.
Out of the given alternatives select the alternative which best expresses the meaning of given word.
BIDDABLE
Explanation: Amenable most precisely conveys willingness to obey or cooperate, which is the defining sense of biddable. Intractable and rebellious express resistance and are antonymous, while cryptic means mysterious or difficult to understand and is unrelated to obedience.
Out of the given alternatives select the alternative which best expresses the meaning of given word.
SIBYLLINE
Explanation: Oracular captures the mysterious and sometimes prophetic quality of sibylline. Explicit is its opposite, extrinsic refers to an external origin, and docile describes an obedient temperament rather than enigmatic prophecy.
Out of the given alternatives select the alternative which best expresses the meaning of given word.
ADJUVANT
Explanation: An enhancer increases the effectiveness of another treatment or process and therefore best matches adjuvant. An inhibitor restrains action, an impediment obstructs progress, and a gradient denotes a slope or rate of inclination.
Out of the given alternatives select the alternative which best expresses the meaning of given word.
EXTRUDE
Explanation: Expel means to force something out and is the closest synonym of extrude. Retract, insert, and withdraw do not express the specific action of pushing material outward through a narrow opening under pressure.
Out of the given alternatives select the word opposite in meaning to the given word.
DECLIVITY
Explanation: A declivity is a downward slope, whereas an acclivity is an upward slope and is therefore the exact opposite. Descent, gradient, and downslope either repeat or closely relate to the meaning of declivity.
Out of the given alternatives select the word opposite in meaning to the given word.
DRAGOON
Explanation: To dragoon someone is to force or intimidate that person into acting; liberate means to release from force or restraint and is the strongest opposite. Compel, intimidate, and coerce are close synonyms of the target word.
Out of the given alternatives select the word opposite in meaning to the given word.
EXOGENOUS
Explanation: Exogenous describes something originating from outside, while intrinsic denotes something belonging naturally within or arising internally. Foreign, outside, and external all support the original meaning rather than oppose it.
Out of the given alternatives select the word opposite in meaning to the given word.
PREEN
Explanation: To preen is to groom or beautify oneself, whereas deface means to spoil or mar appearance and is therefore opposite in sense. Adorn, beautify, and primp are all closely aligned with preening.
Out of given alternatives, choose the word which can be substituted for the given words/ sentence.
A substance or factor added to increase the effectiveness of another treatment or process.
Explanation: Adjuvant precisely denotes an additional substance or factor that strengthens another treatment or process. Bullion refers to precious metal bars, declivity to a downward slope, and epistrophe to a rhetorical repetition at clause endings.
Out of given alternatives, choose the word which can be substituted for the given words/ sentence.
Gold or silver in bars or ingots and valued chiefly by weight.
Explanation: Bullion is the exact one-word substitute for gold or silver in bars or ingots valued by weight. Extrude is a verb of forcing out, sibylline describes something enigmatic or prophetic, and biddable means obedient.
Out of given alternatives, choose the word which can be substituted for the given words/ sentence.
The repetition of a word or phrase at the end of successive clauses or sentences.
Explanation: Epistrophe names the rhetorical repetition occurring at the ends of successive clauses or sentences. The other choices denote a slope, an external origin, and the act of grooming, none of which fits the definition.
Out of given alternatives, choose the word which can be substituted for the given words/ sentence.
To force or intimidate a person into doing something against willingness.
Explanation: Dragoon means to coerce or intimidate someone into acting and is therefore the precise substitute. Preen concerns grooming, extrude concerns forcing material through an opening, and adjuvant is a supporting substance or factor.
A statement with one blank is given below. Choose the set of words from the given options which can be used to fill the given blank.
Because the memorandum relied on obscure allusions and veiled predictions, its concluding paragraph appeared ________ even to experienced administrators.
Explanation: Sibylline appropriately describes language that is mysterious, difficult to understand, and suggestive of prophecy. Biddable concerns obedience, exogenous concerns external origin, and declivitous relates to a downward slope, so none fits the context.
A statement with one blank is given below. Choose the set of words from the given options which can be used to fill the given blank.
The vaccine formulation included an ________ intended to strengthen the immune response without replacing the principal component.
Explanation: An adjuvant is specifically added to increase the effectiveness of another treatment, which matches the function described. An impediment would hinder effectiveness, while declivity and bullion belong to entirely different semantic fields.
A statement with one blank is given below. Choose the set of words from the given options which can be used to fill the given blank.
The manufacturer adjusted the pressure so that the device could ________ the molten material uniformly through the narrow outlet.
Explanation: Extrude means to force or push material out through a small opening, exactly matching the manufacturing process described. Preen means groom, dragoon means coerce, and retract means draw back rather than push outward.
Out of given alternatives select the option which best expresses the meaning of given idiom/ phrase.
To preen oneself
Explanation: The phrase to preen oneself means to groom or arrange one’s appearance attractively. The other options correspond respectively to exogenous origin, coercion by dragooning, and movement along a declivity.
Out of given alternatives select the option which best expresses the meaning of given idiom/ phrase.
To dragoon someone into doing something
Explanation: The phrase means to coerce or intimidate a person into performing an action. Encouragement through persuasion is milder and opposite in method, while the remaining options describe the functions of an adjuvant and the quality of sibylline language.
Out of given alternatives select the option which best expresses the meaning of given idiom/ phrase.
To extrude through a narrow opening
Explanation: The phrase describes pushing or forcing material outward through a small aperture, usually under pressure. Withdrawal reverses the direction, decoration is associated with preening or adorning, and storing precious metal concerns bullion rather than extrusion.
Out of given alternatives select the word which is correctly spelt.
Select the correctly spelt word.
Explanation: Epistrophe is the correct spelling of the rhetorical device involving repetition at the end of successive clauses or sentences. The other forms alter the accepted ending or introduce unnecessary letters and are not valid spellings of the word.
Out of given alternatives select the word which is correctly spelt.
Select the correctly spelt word.
Explanation: Sibylline is correctly spelt with the required double l and the ending -line. The distractors either replace the vowel pattern, omit a required letter, or add an unnecessary consonant.
Out of given alternatives select the word which is correctly spelt.
Select the correctly spelt word.
Explanation: Exogenous is the accepted spelling for something originating from an external source. The alternatives distort the central vowel sequence or omit the required o before the final -us.
Out of given alternatives select the word which is correctly spelt.
Select the correctly spelt word.
Explanation: Adjuvant is correctly spelt with the sequence adju- and the ending -vant. Each incorrect form changes a vowel or introduces an unsupported letter pattern, creating a nonstandard spelling.
Which of phrases given below each sentence should replace the phrase printed in bold type to make the grammatically correct? If the sentence is correct as it is, mark 'd' as the answer.
The technician observed that the machine had extruded molten plastic through the narrow opening before the pressure gauge failed.
Explanation: The past perfect construction had extruded correctly indicates that the extrusion occurred before another past event, namely the failure of the gauge. The alternatives are ungrammatical because they use an incorrect base form or participle after the auxiliary had.
Which of phrases given below each sentence should replace the phrase printed in bold type to make the grammatically correct? If the sentence is correct as it is, mark 'd' as the answer.
The committee found the warning so sibylline that neither the officials nor the adviser were able to interpret it.
Explanation: With the correlative structure neither...nor, the verb generally agrees with the nearer subject, which is the singular noun adviser; therefore, was able is required. The other alternatives create an inappropriate tense or number agreement in the context.
Which of phrases given below each sentence should replace the phrase printed in bold type to make the grammatically correct? If the sentence is correct as it is, mark 'd' as the answer.
The workers were dragooned to accepting conditions that an independent review later described as unfair.
Explanation: The idiomatic construction is dragoon someone into doing something, so dragooned into accepting is grammatically and semantically correct. The prepositions for, to, and on do not form the accepted pattern with this verb in the given sense.
DIRECTIONS: Read the following passage carefully and answer the questions given below. Certain words/phrases are printed in bold to help you to locate them while answering some of the questions. <br><br><br> When a public health committee examined a new vaccine programme, it rejected the assumption that every difficulty was exogenous. Some weaknesses had arisen within the system itself, while others came from outside suppliers. The committee also warned that an adjuvant could strengthen a vaccine response but could not compensate for careless storage or weak supervision. Its chairperson therefore resisted attempts to dragoon field officers into approving the programme before the evidence had been reviewed. Instead, she asked them to evaluate each claim independently. <br><br> The final report was concise, but one paragraph remained deliberately sibylline. It repeated the phrase without evidence at the end of several successive clauses, an epistrophe that gave the warning rhetorical force. Some readers admired the device; others argued that administrative writing should be explicit rather than cryptic. The committee ultimately clarified the paragraph, reasoning that public instructions must remain biddable in form only in the limited sense that they should be easy to follow, not that officials should obey them without judgment. The episode demonstrated that effective administration requires both disciplined compliance and resistance to coercion.
Which inference is most strongly supported by the passage?
Explanation: The chairperson resisted coercing officials and required them to examine claims independently, so the passage clearly favours scrutiny over forced approval. The other options contradict the distinction between internal and external causes, exaggerate the role of an adjuvant, or misrepresent the committee’s preference for clarity.
DIRECTIONS: Read the following passage carefully and answer the questions given below. Certain words/phrases are printed in bold to help you to locate them while answering some of the questions. <br><br><br> When a public health committee examined a new vaccine programme, it rejected the assumption that every difficulty was exogenous. Some weaknesses had arisen within the system itself, while others came from outside suppliers. The committee also warned that an adjuvant could strengthen a vaccine response but could not compensate for careless storage or weak supervision. Its chairperson therefore resisted attempts to dragoon field officers into approving the programme before the evidence had been reviewed. Instead, she asked them to evaluate each claim independently. <br><br> The final report was concise, but one paragraph remained deliberately sibylline. It repeated the phrase without evidence at the end of several successive clauses, an epistrophe that gave the warning rhetorical force. Some readers admired the device; others argued that administrative writing should be explicit rather than cryptic. The committee ultimately clarified the paragraph, reasoning that public instructions must remain biddable in form only in the limited sense that they should be easy to follow, not that officials should obey them without judgment. The episode demonstrated that effective administration requires both disciplined compliance and resistance to coercion.
In the passage, the word exogenous is used to describe difficulties that were:
Explanation: Within the passage, exogenous contrasts with weaknesses arising within the system and therefore refers to causes coming from outside, such as suppliers. The remaining options correspond to internal origin, an adjuvant, or epistrophe and do not fit the contextual contrast.
DIRECTIONS: Read the following passage carefully and answer the questions given below. Certain words/phrases are printed in bold to help you to locate them while answering some of the questions. <br><br><br> When a public health committee examined a new vaccine programme, it rejected the assumption that every difficulty was exogenous. Some weaknesses had arisen within the system itself, while others came from outside suppliers. The committee also warned that an adjuvant could strengthen a vaccine response but could not compensate for careless storage or weak supervision. Its chairperson therefore resisted attempts to dragoon field officers into approving the programme before the evidence had been reviewed. Instead, she asked them to evaluate each claim independently. <br><br> The final report was concise, but one paragraph remained deliberately sibylline. It repeated the phrase without evidence at the end of several successive clauses, an epistrophe that gave the warning rhetorical force. Some readers admired the device; others argued that administrative writing should be explicit rather than cryptic. The committee ultimately clarified the paragraph, reasoning that public instructions must remain biddable in form only in the limited sense that they should be easy to follow, not that officials should obey them without judgment. The episode demonstrated that effective administration requires both disciplined compliance and resistance to coercion.
Which option is closest in meaning to sibylline as used in the passage?
Explanation: The paragraph is called sibylline because it is deliberately mysterious and difficult to understand; cryptic is therefore the closest synonym. Explicit is the opposite, while obedient and external correspond to biddable and exogenous.
DIRECTIONS: Read the following passage carefully and answer the questions given below. Certain words/phrases are printed in bold to help you to locate them while answering some of the questions. <br><br><br> When a public health committee examined a new vaccine programme, it rejected the assumption that every difficulty was exogenous. Some weaknesses had arisen within the system itself, while others came from outside suppliers. The committee also warned that an adjuvant could strengthen a vaccine response but could not compensate for careless storage or weak supervision. Its chairperson therefore resisted attempts to dragoon field officers into approving the programme before the evidence had been reviewed. Instead, she asked them to evaluate each claim independently. <br><br> The final report was concise, but one paragraph remained deliberately sibylline. It repeated the phrase without evidence at the end of several successive clauses, an epistrophe that gave the warning rhetorical force. Some readers admired the device; others argued that administrative writing should be explicit rather than cryptic. The committee ultimately clarified the paragraph, reasoning that public instructions must remain biddable in form only in the limited sense that they should be easy to follow, not that officials should obey them without judgment. The episode demonstrated that effective administration requires both disciplined compliance and resistance to coercion.
Which statement is true according to the passage?
Explanation: The passage states that the committee clarified the paragraph because public instructions should not remain cryptic. The repeated phrase appeared at clause endings, not beginnings, and the committee expressly rejected unthinking obedience and did not claim that every paragraph was unclear.
DIRECTIONS: Read the following passage carefully and answer the questions given below. Certain words/phrases are printed in bold to help you to locate them while answering some of the questions. <br><br><br> When a public health committee examined a new vaccine programme, it rejected the assumption that every difficulty was exogenous. Some weaknesses had arisen within the system itself, while others came from outside suppliers. The committee also warned that an adjuvant could strengthen a vaccine response but could not compensate for careless storage or weak supervision. Its chairperson therefore resisted attempts to dragoon field officers into approving the programme before the evidence had been reviewed. Instead, she asked them to evaluate each claim independently. <br><br> The final report was concise, but one paragraph remained deliberately sibylline. It repeated the phrase without evidence at the end of several successive clauses, an epistrophe that gave the warning rhetorical force. Some readers admired the device; others argued that administrative writing should be explicit rather than cryptic. The committee ultimately clarified the paragraph, reasoning that public instructions must remain biddable in form only in the limited sense that they should be easy to follow, not that officials should obey them without judgment. The episode demonstrated that effective administration requires both disciplined compliance and resistance to coercion.
Which word is the most suitable antonym of dragoon in the context of the passage?
Explanation: In context, dragoon means to force or intimidate officials into approving the programme. Encourage is the best opposite because it supports action without coercion, whereas compel, intimidate, and coerce all reinforce the original meaning.


