spray has 6 distinct synonyms spread across 2 of its 9 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.
a pesticide in suspension or solution; intended for spraying
a quantity of small objects flying through the air
“a spray of bullets”
Synonyms, antonyms and the broader and narrower relations for spray come from Princeton University’s WordNet. Full sources and licences.
flower arrangement consisting of a single branch or shoot bearing flowers and foliage
water in small drops in the atmosphere; blown from waves or thrown up by a waterfall