bataan has 1 distinct synonym 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.
the peninsula and island in the Philippines where Japanese forces besieged American forces in World War II; United States forces surrendered in 1942 and recaptured the area in 1945
Synonyms, antonyms and the broader and narrower relations for bataan come from Princeton University’s WordNet. Full sources and licences.