What does the kanji 打 mean?

打 means strike, hit, knock, pound, dozen.

打

打 — strike, hit, knock, pound, dozen

打撃だげき(1) blow; shock; strike; damage (2) batting (baseball)
打つうつ(1) to hit; to strike; to knock; to beat; to punch; to slap; to tap; to bang; to clap; to pound (2) to strike (noon, etc.); to sound (cymbals, etc.); to beat (a drum, etc.) (3) to beat (rhythmically, e.g. pulse, waves, etc.) (4) to move; to impress; to touch (5) to drive in; to hammer in; to put in; to inject (6) to type; to send; to transmit (7) to insert; to write in; to mark (8) to make (noodles, etc.); to prepare (9) to till (soil) (10) to sprinkle; to throw; to cast (11) to do; to carry out; to play; to perform; to engage in (gambling, etc.) (12) to pay (a deposit, etc.) (13) to visit (on a pilgrimage) (14) to line (a coat) (15) to bind (a criminal)
打ち込むうちこむto drive in (e.g. nail, stake); to devote oneself to; to shoot into; to smash; to throw into; to cast into
打ち合わせうちあわせ(1) business meeting; previous arrangement; appointment; preparatory meeting (2) overlap (of a coat, etc.) (3) making something match exactly
打消すうちけす(1) to deny; to contradict (2) to negate (esp. a sound); to drown out
打消しうちけしnegation; denial; negative
打開だかいbreak in the deadlock
値打ちねうちvalue; worth; price; dignity