bruise has 7 distinct synonyms spread across 3 of its 5 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.
Synonyms, antonyms and the broader and narrower relations for bruise come from Princeton University’s WordNet. Full sources and licences.
break up into small pieces for food preparation
“bruise the berries with a wooden spoon and strain them”
damage (plant tissue) by abrasion or pressure
“The customer bruised the strawberries by squeezing them”
an injury that doesn't break the skin but results in some discoloration