Definitions
1.nounPsychology or psychiatry."a psych class"
2.nounA psychologist; a psychiatrist.
3.verbTo put (someone) into a required psychological frame of mind (also psych up).
4.verbTo intimidate (someone) emotionally or using psychology (also psych out).
5.verbTo treat (someone) using psychoanalysis.
6.adjectivePsychedelic."curtains with psych colors"
7.adjectivePsychiatric.
8.interjectionIndicating that one's preceding statement was false and that one has successfully fooled one's interlocutor. Also sike.
9.interjectionAn interjection of surprised happiness."Psych! I just found my missing bracelet!"