lime has 19 distinct synonyms spread across 6 of its 8 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 caustic substance produced by heating limestone
a white crystalline oxide used in the production of calcium hydroxide
a sticky adhesive that is smeared on small branches to capture small birds
any of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber
cover with lime so as to induce growth
“lime the lawn”
Synonyms, antonyms and the broader and narrower relations for lime come from Princeton University’s WordNet. Full sources and licences.