presence has 4 distinct synonyms spread across 2 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. Its one recorded opposite is absence.
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.
an invisible spiritual being felt to be nearby
the impression that something is present
“he felt the presence of an evil force”
the act of being present
Synonyms, antonyms and the broader and narrower relations for presence come from Princeton University’s WordNet. Full sources and licences.