henry has 4 distinct synonyms spread across 4 of its 4 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 unit of inductance in which an induced electromotive force of one volt is produced when the current is varied at the rate of one ampere per second
English chemist who studied the quantities of gas absorbed by water at different temperatures and under different pressures (1775-1836)
Synonyms, antonyms and the broader and narrower relations for henry come from Princeton University’s WordNet. Full sources and licences.
a leader of the American Revolution and a famous orator who spoke out against British rule of the American colonies (1736-1799)
United States physicist who studied electromagnetic phenomena (1791-1878)