hays has 3 distinct synonyms spread across 2 of its 3 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.
United States lawyer and politician who formulated a production code that prescribed the moral content of United States films from 1930 to 1966 (1879-1954)
United States lawyer involved in several famous court trials (1881-1954)
Synonyms, antonyms and the broader and narrower relations for hays come from Princeton University’s WordNet. Full sources and licences.