psycho

play
noun psy·cho \ˈsī-(ˌ)kō\

Definition of psycho

plural

psychos

  1. :  a deranged or psychopathic person —not used technically

psycho

adjective

Examples of psycho in a sentence

  1. He plays a drug-dealing psycho in the movie.

  2. <a story based on a real-life psycho who had serious mother-son issues>

Origin and Etymology of psycho

short for psychopath


First Known Use: 1942


PSYCHO Defined for English Language Learners

psycho

play
noun psy·cho \ˈsī-(ˌ)kō\

Definition of psycho for English Language Learners

  • : a person who is mentally ill and often dangerous or violent


Medical Dictionary

psycho

play
noun psy·cho \ˈsī-(ˌ)kō\

Medical Definition of psycho

plural

psychos

  1. :  a deranged or psychopathic individual—not used technically

psycho

adjective

Learn More about psycho


Seen and Heard

What made you want to look up psycho? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to trick or confuse (someone)

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • alphabet-magnets
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ