fcs has 1 distinct synonym spread across 1 of its 1 sense. 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 cooperative nationwide system of banks and associations providing credit to farmers and related businesses; originally capitalized by the federal government but now owned by its members and borrowers
Synonyms, antonyms and the broader and narrower relations for fcs come from Princeton University’s WordNet. Full sources and licences.