打ち込む

うちこむ

Meanings

Godan verb, Transitive to drive in (a nail, stake, etc.); to hammer in
to hit (a ball, etc.); to drive; to smash
to fire into; to shoot into (also written as 撃ち込む)
to input (data); to enter
to devote oneself to; to be absorbed in; to be (really) into; to be enthusiastic about; to put heart and soul into; to throw oneself into; to go head over heels for
to practice hitting (baseball, tennis, etc.)
to hit (an opponent in kendo, boxing, etc.); to get a blow in
to invade one's opponent's territory; to place a stone in an opponent's formation
to pour (concrete, etc.) into a form

基礎に杭を打ち込むのを忘れて、空中に楼閣を建てるとは、あなたも愚かな人だ。
It is foolish of you to build a castle in the air while forgetting to drive in pilings for its foundation.
自分の事に打ち込みなさい。
Mind your own business.
板にくぎを打ち込んだ。
He hammered nails into the plank.
彼はすっかり商売に打ち込んでいる。
He is completely absorbed in his business.
彼はその仕事に打ち込んだ。
He applied himself to the task.

打ち込み稽古 (うちこみげいこ) training performed by an attacker and a defender, involving intentional openings