(transitive, reflexive) To put (someone) into a required psychological frame of mind (also psych up). / (transitive) To intimidate (someone) emotionally or using psychology (also psych out).

(slang) Indicating that one's preceding statement was false and that one has successfully fooled one's interlocutor. / (dated, slang) An interjection of surprised happiness.

(informal) Psychedelic. / (informal) Psychiatric.

Psychology or psychiatry. / A psychologist; a psychiatrist.

Alternative form of psycho-

(colloquial) Alternative form of psych

(transitive) To put (someone) into a required psychological frame of mind. / (transitive) To intimidate (someone) emotionally using psychology.

Abbreviation of psychology.

The human soul, mind, or spirit. / (chiefly psychology) The human mind as the central force in thought, emotion, and behavior of an individual.

Third-person singular simple present indicative form of psyche