community has 4 distinct synonyms spread across 3 of its 7 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 group of people having a religion, ethnic, profession, or other particular characteristic in common
“he was well known throughout the Catholic community”
common ownership
“they shared a community of possessions”
a group of nations having common interests
“they hoped to join the NATO community”
agreement as to goals
“the preachers and the bootleggers found they had a community of interests”
a district where people live; occupied primarily by private residences
(ecology) a group of interdependent organisms inhabiting the same region and interacting with each other
Synonyms, antonyms and the broader and narrower relations for community come from Princeton University’s WordNet. Full sources and licences.