To depress (a key or button, for example) in order to activate a device or perform an operation: punched the "repeat" key; punched in the number on the computer.
Baseball To hit (a ball) with a quick short swing.
Phrasal Verb(s): punch inTo check in formally at a job upon arrival. punch out
To check out formally at a job upon departure.
To knock unconscious with a punch.
Slang To eject from a military aircraft.
Idiom(s):
beat to the punchTo make the first decisive move: a marketing team that beat all the competitors to the punch.
[Middle English punchen, to thrust, prod, prick, from Old French poinçonner, ponchonner, to emboss with a punch, from poinçon, ponchon, pointed tool; see puncheon1.] punch'less adj.