disorganisation vs disorganization

disorganisation and disorganization both are nouns.

Word	Noun	Adjective	Verb	Adverb
disorganisation	Yes	No	No	No
disorganization	Yes	No	No	No

As nouns, disorganisation and disorganization are synonyms defined as:

disorganisation and disorganization: the disturbance of a systematic arrangement causing disorder and confusion

As nouns, disorganisation and disorganization are synonyms defined as:

disorganisation and disorganization: a condition in which an orderly system has been disrupted

Other synonyms of disorganisation include disarrangement.

disorganisation (noun)	disorganization (noun)
the disturbance of a systematic arrangement causing disorder and confusion	the disturbance of a systematic arrangement causing disorder and confusion
a condition in which an orderly system has been disrupted	a condition in which an orderly system has been disrupted