noun

psycho

psycho, psychopath

Be careful, he's a real psycho.

Be careful, he's a real psycho.

The main character in the film is a psycho.

The main character in the film is a psycho.

((a/an)) psycho (as a countable noun) He is considered a psycho by his neighbors.

Synonyms: psychopath, maniac, lunatic

Short for 'psychopath' or 'psychotic', from Greek 'psykhē' meaning 'soul, mind'.

Think of the famous Alfred Hitchcock film, 'Psycho'.

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