geek (suomeksi)

nörtti (s: expert in a technical field, particularly to do with computers)
friikki (s: expert in a technical field, particularly to do with computers / person intensely interested in a particular field or hobby / unfashionable or socially undesirable person)
-hullu (s: person intensely interested in a particular field or hobby)
friikkiys (s: subculture)
-hulluus (s: subculture)
ilveilijä (s: carnival performer)