psycho

As nouns the difference between taxonomy and psycho

is that taxonomy is the science or the technique used to make a classification while psycho is (pejorative|slang) a person who is psychotic or otherwise insane.

As an adjective psycho is

(colloquial|or|pejorative) psychotic, or otherwise insane.

In informal terms the difference between crazy and psycho

is that crazy is unexpected; surprising while psycho is a class, at a college or university, in which psychology is taught.

As adjectives the difference between crazy and psycho

is that crazy is insane; lunatic; demented while psycho is psychotic, or otherwise insane.

As nouns the difference between crazy and psycho

is that crazy is an insane or eccentric person; a crackpot while psycho is a person who is psychotic or otherwise insane.

As an adverb crazy

is very, extremely.

As nouns the difference between psyche and psycho

is that psyche is the human soul, mind, or spirit while psycho is a person who is psychotic or otherwise insane.

As an abbreviation psyche

is psychology.

As an interjection psyche

is Used abruptly after a sentence to indicate that the speaker is only joking.

As a verb psyche

is to put (someone) into a required psychological frame of mind.

As a proper noun Psyche

is the personification of the soul. Originally a mortal princess who later married Eros/Cupid, (the god of love), was deified, and bore him a daughter, Hedone/Voluptas.

As an adjective psycho is

psychotic, or otherwise insane.