bush has 17 distinct synonyms spread across 7 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 low woody perennial plant usually having several major stems
a large wilderness area
dense vegetation consisting of stunted trees or bushes
43rd President of the United States; son of George Herbert Walker Bush (born in 1946)
United States electrical engineer who designed an early analogue computer and who led the scientific program of the United States during World War II (1890-1974)
vice president under Reagan and 41st President of the United States (born in 1924)
not of the highest quality or sophistication
Synonyms, antonyms and the broader and narrower relations for bush come from Princeton University’s WordNet. Full sources and licences.