ape has 6 distinct synonyms spread across 3 of its 5 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.
any of various primates with short tails or no tail at all
imitate uncritically and in every aspect
“Her little brother apes her behavior”
represent in or produce a caricature of
“The drawing caricatured the President”
Synonyms, antonyms and the broader and narrower relations for ape come from Princeton University’s WordNet. Full sources and licences.