bid has 14 distinct synonyms spread across 9 of its 10 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.
make a serious effort to attain something
“His campaign bid for the attention of the poor population”
an authoritative direction or instruction to do something
a formal proposal to buy at a specified price
Synonyms, antonyms and the broader and narrower relations for bid come from Princeton University’s WordNet. Full sources and licences.