умник znamená v Angličtina

freak [freaks]▼(person who has an obsession or extreme knowledge of something)
noun
[UK: friːk] [US: ˈfriːk]

smart aleck▼(a wise guy)
noun
[UK: ˈsmɑːt.ˈæ.lɪk] [US: ˈsmɑːt.ˈæ.lɪk]

smartass▼(one who is particularly insolent)
noun
[UK: smˈɑːtas] [US: smˈɑːrɾæs]

wiseacre▼(one who feigns knowledge or cleverness)
noun
[UK: ˈwaɪ.zeɪkə(r)] [US: ˈwaɪ.zeɪkər]