salute has 7 distinct synonyms spread across 4 of its 9 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.
greet in a friendly way
Synonyms, antonyms and the broader and narrower relations for salute come from Princeton University’s WordNet. Full sources and licences.
“I meet this men every day on my way to work and he salutes me”
express commendation of
“I salute your courage!”
become noticeable
“a terrible stench saluted our nostrils”
honor with a military ceremony, as when honoring dead soldiers
an act of honor or courteous recognition
“a musical salute to the composer on his birthday”
an act of greeting with friendly words and gestures like bowing or lifting the hat