surreal humor vs surreal humour

surreal humor and surreal humour both are nouns.

Word	Noun	Adjective	Verb	Adverb
surreal humor	Yes	No	No	No
surreal humour	Yes	No	No	No

As nouns, surreal humor and surreal humour are synonyms defined as:

surreal humor and surreal humour: is a form of humour predicated on deliberate violations of causal reasoning, producing events and behaviours that are obviously illogical.

Other synonyms of surreal humor include absurdist humor, absurdist humour.

surreal humor (noun)	surreal humour (noun)
is a form of humour predicated on deliberate violations of causal reasoning, producing events and behaviours that are obviously illogical.	is a form of humour predicated on deliberate violations of causal reasoning, producing events and behaviours that are obviously illogical.