What is another word for knuckles under?
Pronunciation: [nˈʌkə͡lz ˈʌndə] (IPA) 
"Knuckles under" is an idiomatic expression that means to give in, surrender or submit to someone or something. There are several synonyms for this phrase, such as capitulate, concede, yield, succumb, bow down, give up, give way, cave in, and acquiesce. Capitulate implies surrendering after a prolonged or tough struggle, while conceding implies admitting defeat gracefully. Yielding suggests giving way under pressure, and succumbing implies a loss of determination or resistance. Bowing down indicates showing deference or submission, while giving up and giving way imply abandoning a position or course of action. Caving in and acquiescing suggest accepting a situation, agreeing to it, or conforming to certain conditions.
