phoenix tree has 4 distinct synonyms spread across 1 of its 1 sense. 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.
deciduous tree widely grown in southern United States as an ornamental for its handsome maplelike foliage and long racemes of yellow-green flowers followed by curious leaflike pods
Synonyms, antonyms and the broader and narrower relations for phoenix tree come from Princeton University’s WordNet. Full sources and licences.