Hit  —v. (-tt-; past and past part. Hit) 1 a strike with a blow or missile. B (of a moving body) strike with force (the plane hit the ground). C reach (a target etc.) With a directed missile (hit the wicket). 2 cause to suffer; affect adversely. 3 (often foll. By at, against) direct a blow. 4 (often foll. By against, on) knock (a part of the body) (hit his head). 5 achieve, reach (hit the right tone; can't hit the high notes). 6 colloq. A encounter (hit a snag). B arrive at (hit town). C indulge heavily in, esp. Liquor etc. (hit the bottle). 7 esp. Us slang rob or kill. 8 occur forcefully to (it only hit him later). 9 a propel (a ball etc.) With a bat etc. To score runs or points. B score in this way (hit a six). —n. 1 a blow, stroke. B collision. 2 shot etc. That hits its target. 3 colloq. Popular success.  hit back retaliate. Hit below the belt 1 esp. Boxing give a foul blow. 2 treat or behave unfairly. Hit the hay (or sack) colloq. Go to bed. Hit it off (often foll. By with, together) colloq. Get on well (with a person). Hit the nail on the head state the truth exactly. Hit on (or upon) find by chance. Hit out deal vigorous physical or verbal blows. Hit the road slang depart. Hit the roof see *roof. [old english from old norse]