smith has 13 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.
Rhodesian statesman who declared independence of Zimbabwe from Great Britain (born in 1919)
United States singer noted for her rendition of patriotic songs (1909-1986)
United States suffragist who refused to pay taxes until she could vote (1792-1886)
religious leader who founded the Mormon Church in 1830 (1805-1844)
English explorer who helped found the colony at Jamestown, Virginia; was said to have been saved by Pocahontas (1580-1631)
Scottish economist who advocated private enterprise and free trade (1723-1790)
someone who works at something specified
someone who works metal (especially by hammering it when it is hot and malleable)
Synonyms, antonyms and the broader and narrower relations for smith come from Princeton University’s WordNet. Full sources and licences.