raid has 4 distinct synonyms spread across 3 of its 6 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.
enter someone else's territory and take spoils
“The pirates raided the coastal villages regularly”
Synonyms, antonyms and the broader and narrower relations for raid come from Princeton University’s WordNet. Full sources and licences.
take over (a company) by buying a controlling interest of its stock
“T. Boone Pickens raided many large companies”
search for something needed or desired
“Our babysitter raided our refrigerator”
an attempt by speculators to defraud investors