Sign off (on a haircut )(phrase)
Give one's approval to
Hindi meaning:सहमति देना
Synonyms: Approve, Permit, Endorse
Antonyms: Disapprove, Refused
Example: It was hard to get celebrities to sign off on those issues.
Trick to remember: Sign karke sign off karte hai aap. 
Learn it with 19 more words: Daily Vocabulary – 31 October 2017 →
