square up

See also: square-up

English

Verb

square up (third-person singular simple present squares up, present participle squaring up, simple past and past participle squared up)

to get ready for a fight
Synonym: square off

Antonym: stand down
to adopt a fighting stance
Synonym: square off

Antonym: stand down
- 2017 March 14, Stuart James, “Leicester stun Sevilla to reach last eight after Kasper Schmeichel save”, in the Guardian‎^[1]:
  Samir Nasri was shown a second yellow card moments earlier after squaring up to Jamie Vardy, with the two players going forehead to forehead after exchanging insults.
to face (someone) in a contest
Synonym: square off

Antonym: stand down
to pay back money that is owed
Let me know how much my share in the activity is and I'll square up with you tomorrow.
(transitive, machining, die making) To mill (blocks, inserts, etc) into precisely square condition.