Synonym of KNUCKLE

Resign
Surrender
Face
Struggle

The correct answer is: C. Face

The other options are:

  • A. Resign: to give up one’s position or office.
  • B. Surrender: to give up control of something to someone else.
  • D. Struggle: to make great efforts to do something difficult.

To “face” something means to confront it or deal with it directly. It can also mean to stand up to something or someone. In the context of the question, the answer is “face” because it is the only option that means to deal with something directly. The other options all mean to give up or avoid something.