phrase has 9 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.
an expression consisting of one or more words forming a grammatical constituent of a sentence
an expression whose meanings cannot be inferred from the meanings of the words that make it up
dance movements that are linked in a single choreographic sequence
Synonyms, antonyms and the broader and narrower relations for phrase come from Princeton University’s WordNet. Full sources and licences.