compensation has 1 distinct synonym spread across 1 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.
something (such as money) given or received as payment or reparation (as for a service or loss or injury)
(psychiatry) a defense mechanism that conceals your undesirable shortcomings by exaggerating desirable behaviors
the act of compensating for service or loss or injury
Synonyms, antonyms and the broader and narrower relations for compensation come from Princeton University’s WordNet. Full sources and licences.