Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun permission

2 senses of permission

Sense 1
permission -- (approval to do something; "he asked permission to leave")
       => approval, commendation -- (a message expressing a favorable opinion; "words of approval seldom passed his lips")

Sense 2
license, permission, permit -- (the act of giving a formal (usually written) authorization)
       => authorization, authorisation, empowerment -- (the act of conferring legality or sanction or formal warrant)