escape has 30 distinct synonyms spread across 11 of its 15 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.
nonperformance of something distasteful (as by deceit or trickery) that you are supposed to do
“his evasion of his clear duty was reprehensible”
an avoidance of danger or difficulty
“that was a narrow escape”
a means or way of escaping
“hard work was his escape from worry”
a plant originally cultivated but now growing wild
a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
run away from confinement
“The convicted murderer escaped from a high security prison”
Synonyms, antonyms and the broader and narrower relations for escape come from Princeton University’s WordNet. Full sources and licences.
remove oneself from a familiar environment, usually for pleasure or diversion
“We escaped to our summer house for a few days”
flee; take to one's heels; cut and run
“If you see this man, run!”
issue or leak, as from a small opening
“Gas escaped into the bedroom”