Definition of ういけん
- (n) angel's raiment; robe of feathers
- wings of birds or insects; plumage of birds
- type of bug
- (int) used to express approval, especially in slurred or unclear speech (abbr. of interjection "un")
- negative verb ending used in informal speech (abbr. of negative verb ending "nu")
- abbr. of particle "no"
- abbr. of particle "ni" (used especially when it precedes the verb "naru")