lock
verb
uk/lɒk/ uslock horns (with sb)
to become involved in a disagreement or argument with someone:
My first test as a manager early in my career was locking horns with a union representative at a print factory.
lock horns (with sb) over sth The White House and Congress locked horns over how to cut the budget deficit.
Phrasal verbs
lock sth away
lock in sth
lock sb into sth
lock sb out of sth