chop-suey greens has 3 distinct synonyms spread across 1 of its 2 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.
grown for its succulent edible leaves used in Asian cooking
succulent and aromatic young dark green leaves used in Chinese and Vietnamese and Japanese cooking
Synonyms, antonyms and the broader and narrower relations for chop-suey greens come from Princeton University’s WordNet. Full sources and licences.