psy·cho 
(sīkō) Slang
(sīkō) Slang n. pl. psy·chos
A psychopath.
adj.
Mentally deranged; crazy.
- world
- worldbeat
- world-beater
- world-class
- World Cup
- world line
- worldliness
- worldling
- worldly
- worldly-wise
- world music
- world power
- world-renowned
- World Series
- world's fair
- world-shaking
- world soul
- worldview
- World War I
- World War II
- world-weariness
- world-weary
- worldwide
- World Wide Web
- world without end