What is another word for knuckling under?
Pronunciation: [nˈʌklɪŋ ˈʌndə] (IPA) 
Knuckling under is an expression that refers to surrendering or yielding to someone or something. There are several synonyms for knuckling under, depending on the context in which the term is used. Some of the synonyms for knuckling under include submitting, acquiescing, giving in, capitulating, bowing, caving in, succumbing, conceding, and obeying. While these terms have different shades of meaning, they all imply the concept of yielding to someone else's will or authority. The use of synonyms can help writers to avoid repetition and to convey the desired meaning more accurately, depending on the context and tone of the piece.
