Definition of "psyche"

psyche¹

/ˈsaɪ.ki/

noun
plural psyches
1. The human soul, mind, or spirit.
  Quotations
  I've been driving in L.A. / And the world, it feels too big / Like a floating ball that's bound to break / Snap my psyche like a twig
  2022 January 28, Em Beihold, Nick Lopez, Dru DeCaro, “Numb Little Bug”, in Egg in the Backseat‎, performed by Em Beihold
  We feel we have been victimised over the centuries. It’s part of our psyche – underneath it all we side with the underdog.”
  2023 November 20, Rory Carroll, Lisa O'Carroll, “‘It’s part of our psyche’: why Ireland sides with ‘underdog’ Palestine”, in The Guardian‎
2. (chiefly psychology) The human mind as the central force in thought, emotion, and behavior of an individual.
3. A small white butterfly, Leptosia nina, family Pieridae, of Asia and Australasia.

psyche²

/ˈsaɪk/

noun
uncountable
1. Abbreviation of psychology.
interjection
1. (colloquial) Alternative form of psych
verb
third-person singular simple present psyches, present participle psyching, simple past and past participle psyched
1. (transitive) To put (someone) into a required psychological frame of mind.
2. (transitive) To intimidate (someone) emotionally using psychology.
3. (transitive, informal) To treat (someone) using psychoanalysis.