bacon has 6 distinct synonyms spread across 2 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.
back and sides of a hog salted and dried or smoked; usually sliced thin and fried
English scientist and Franciscan monk who stressed the importance of experimentation; first showed that air is required for combustion and first used lenses to correct vision (1220-1292)
English statesman and philosopher; precursor of British empiricism; advocated inductive reasoning (1561-1626)
Synonyms, antonyms and the broader and narrower relations for bacon come from Princeton University’s WordNet. Full sources and licences.