plagiarisation vs plagiarization

plagiarisation and plagiarization both are nouns.

Word	Noun	Adjective	Verb	Adverb
plagiarisation	Yes	No	No	No
plagiarization	Yes	No	No	No

As nouns, plagiarisation and plagiarization are synonyms defined as:

plagiarisation and plagiarization: the act of plagiarizing; taking someone's words or ideas as if they were your own

Other synonyms of plagiarisation include piracy, plagiarism.

plagiarisation (noun)	plagiarization (noun)
the act of plagiarizing; taking someone's words or ideas as if they were your own	the act of plagiarizing; taking someone's words or ideas as if they were your own