leave has 26 distinct synonyms spread across 13 of its 17 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 arrive.
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.
act or be so as to become in a specified state
“The inflation left them penniless”
leave unchanged or undisturbed or refrain from taking
“leave it as is”
remove oneself from an association with or participation in
“She wants to leave”
have left or have as a remainder
“That left the four of us”
the period of time during which you are absent from work or duty
“a ten day's leave to visit his mother”
Synonyms, antonyms and the broader and narrower relations for leave come from Princeton University’s WordNet. Full sources and licences.
permission to do something
“she was granted leave to speak”
the act of departing politely
“he disliked long farewells”