zion has 5 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.
originally a stronghold captured by David (the 2nd king of the Israelites); above it was built a temple and later the name extended to the whole hill; finally it became a synonym for the city of Jerusalem
“the inhabitants of Jerusalem are personified as `the daughter of Zion'”
Jewish republic in southwestern Asia at eastern end of Mediterranean; formerly part of Palestine
Synonyms, antonyms and the broader and narrower relations for zion come from Princeton University’s WordNet. Full sources and licences.