1 Alkaline (adjective)

Having the properties of an alkali, especially having a pH greater than 7. (क्षारीय)

Synonyms: Basic, Alkalescent, Alkali, Caustic

Antonyms: Acidic, Acid, Neutral, Non-alkaline

Example: Soap solution is alkaline and has a pH greater than seven.

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2 Electric (adjective)

Relating to, operated by or producing electricity. (विद्युत संबंधी)

Synonyms: Electrical, Electrified, Powered, Energized

Antonyms: Manual, Mechanical, Non-electric, Unpowered

Example: The company plans to replace its petrol vehicles with electric cars.

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3 Rural (adjective)

Relating to the countryside rather than towns or cities. (ग्रामीण)

Synonyms: Rustic, Agrarian, Pastoral, Countryside

Antonyms: Urban, Metropolitan, Municipal, Cosmopolitan

Example: The government introduced new healthcare facilities in rural areas.

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4 Perpendicular (adjective)

At an angle of 90 degrees to a given line, plane or surface. (लम्बवत)

Synonyms: Vertical, Upright, Plumb, Orthogonal

Antonyms: Parallel, Oblique, Slanting, Inclined

Example: The vertical pole is perpendicular to the horizontal ground.

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5 Cowardice (noun)

Lack of courage or bravery in facing danger or difficulty. (कायरता)

Synonyms: Timidity, Fearfulness, Cravenness, Pusillanimity

Antonyms: Courage, Bravery, Valor, Boldness

Example: Abandoning his companions in danger was regarded as an act of cowardice.

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6 Emerald (noun)

A bright green precious stone consisting of a variety of beryl. (पन्ना)

Synonyms: Gemstone, Jewel, Beryl, Gem

Antonyms: Dullness, Worthlessness, Plainness, Drabness

Example: The queen wore a magnificent emerald in her necklace.

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7 Furnace (noun)

An enclosed structure in which material is heated to a very high temperature. (भट्ठी)

Synonyms: Kiln, Oven, Heater, Incinerator

Antonyms: Freezer, Refrigerator, Cooler, Chiller

Example: The metal was melted in a furnace before being shaped into tools.

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8 Interrupt (verb)

Stop the continuous progress of an activity or temporarily prevent someone from speaking. (बाधा डालना)

Synonyms: Disrupt, Disturb, Interfere, Obstruct

Antonyms: Continue, Assist, Facilitate, Support

Example: Please do not interrupt the speaker while she is presenting her argument.

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9 Overlap (verb)

Extend over or cover a part of something else, especially partly or at the edges. (अतिव्याप्त होना)

Synonyms: Intersect, Coincide, Converge, Overlay

Antonyms: Separate, Diverge, Disconnect, Divide

Example: The responsibilities of the two departments often overlap.

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10 Interact (verb)

Act in such a way as to have an effect on or communicate with another person or thing. (परस्पर क्रिया करना)

Synonyms: Communicate, Engage, Associate, Connect

Antonyms: Avoid, Ignore, Isolate, Withdraw

Example: Students interact with their teachers during classroom discussions.

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11 Bootleg (adjective)

Made, copied or sold illegally, especially without official permission. (अवैध रूप से निर्मित या बेचा गया)

Synonyms: Illegal, Illicit, Pirated, Unauthorized

Antonyms: Legal, Legitimate, Authorized, Licensed

Example: The police seized thousands of bootleg copies of the film.

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12 Hoarse (adjective)

Having a rough, harsh or weak voice, usually because of illness or excessive speaking. (भारी या कर्कश आवाज़ वाला)

Synonyms: Husky, Raspy, Croaky, Gruff

Antonyms: Clear, Melodious, Smooth, Resonant

Example: After shouting throughout the match, his voice became hoarse.

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13 Waterlogged (adjective)

Completely soaked or saturated with water. (पानी से पूरी तरह भरा या भीगा हुआ)

Synonyms: Soaked, Saturated, Drenched, Sodden

Antonyms: Dry, Arid, Parched, Dehydrated

Example: Heavy rainfall left several agricultural fields waterlogged for days.

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14 Worldly (adjective)

Experienced and knowledgeable about practical matters of life. (दुनियादार या व्यावहारिक अनुभव वाला)

Synonyms: Experienced, Sophisticated, Cosmopolitan, Practical

Antonyms: Naive, Inexperienced, Innocent, Unworldly

Example: His worldly experience helped him handle the difficult negotiation calmly.

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15 Necessitate (verb)

To make something necessary or unavoidable. (आवश्यक बना देना)

Synonyms: Require, Demand, Entail, Compel

Antonyms: Obviate, Avoid, Eliminate, Prevent

Example: The unexpected rise in costs necessitated a revision of the budget.

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16 Tally (verb)

To agree or correspond with something else. (मेल खाना)

Synonyms: Match, Correspond, Agree, Accord

Antonyms: Differ, Conflict, Disagree, Contradict

Example: His statement did not tally with the evidence presented before the court.

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17 Tailor (verb)

To make or modify something to suit a particular purpose, person or need. (आवश्यकता के अनुसार ढालना)

Synonyms: Customize, Adapt, Modify, Adjust

Antonyms: Standardize, Generalize, Uniformize, Homogenize

Example: The teacher tailored the lesson to meet the needs of weaker students.

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18 Underdog (noun)

A person, team or competitor expected to lose or be less successful than others. (कमज़ोर या हारने की संभावना वाला प्रतियोगी)

Synonyms: Outsider, Long Shot, Weaker Competitor, Second-Favorite

Antonyms: Favorite, Frontrunner, Champion, Top Dog

Example: The underdog surprised everyone by defeating the defending champions.