archer has 3 distinct synonyms spread across 3 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.
a person who is expert in the use of a bow and arrow
(astrology) a person who is born while the sun is in Sagittarius
Synonyms, antonyms and the broader and narrower relations for archer come from Princeton University’s WordNet. Full sources and licences.
the ninth sign of the zodiac; the sun is in this sign from about November 22 to December 21