compound has 6 distinct synonyms spread across 5 of its 11 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. Its one recorded opposite is simple.
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 whole formed by a union of two or more elements or parts
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
an enclosure of residences and other building (especially in the Orient)
1 of the 11 recorded senses carries no synonym, antonym or related term, so it is not shown above. Every sense, with its definition and examples, is on the full entry for compound.
Synonyms, antonyms and the broader and narrower relations for compound come from Princeton University’s WordNet. Full sources and licences.