strike has 36 distinct synonyms spread across 19 of its 28 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
hit against; come into sudden contact with
“The car hit a tree”
indicate (a certain time) by striking
“The clock struck midnight”
cause to form (an electric arc) between electrodes of an arc lamp
“strike an arc”
produce by ignition or a blow
“strike fire from the flintstone”
disassemble a temporary structure, such as a tent or a theatrical set
“after the show, we'll have to strike the set and pack up”
pierce with force
“The bullet struck her thigh”
arrive at after reckoning, deliberating, and weighing
“strike a balance”
a group's refusal to work in protest against low pay or bad work conditions
“the strike lasted more than a month before it was settled”
an attack that is intended to seize or inflict damage on or destroy an objective
“the strike was scheduled to begin at dawn”
a score in tenpins: knocking down all ten with the first ball
“he finished with three strikes in the tenth frame”
(baseball) a pitch that the batter swings at and misses, or that the batter hits into foul territory, or that the batter does not swing at but the umpire judges to be in the area over home plate and between the batter's knees and shoulders
“this pitcher throws more strikes than balls”
Synonyms, antonyms and the broader and narrower relations for strike come from Princeton University’s WordNet. Full sources and licences.