station has 3 distinct synonyms spread across 3 of its 6 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 facility equipped with special equipment and personnel for a particular purpose
“he started looking for a gas station”
proper or designated social situation
“he overstepped his place”
(nautical) the location to which a ship or fleet is assigned for duty
the position where someone (as a guard or sentry) stands or is assigned to stand
“a soldier manned the entrance post”
the frequency assigned to a broadcasting station
Synonyms, antonyms and the broader and narrower relations for station come from Princeton University’s WordNet. Full sources and licences.