1
to miss (e.g. a chance);to lose;to let get away
この好機を逃すな。
Don't let this chance slip by.
2
to set free;to let go
See also:
逃がす (にがす)
3
to fail to ...
after the -masu stem of a verb
Other forms
遁す 【のがす】 (rarely used kanji form)