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 ; 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