standardiser vs changer

standardiser and changer both are nouns.

Word	Noun	Adjective	Verb	Adverb
standardiser	Yes	No	No	No
changer	Yes	No	No	No

As nouns, changer is a hypernym of standardiser; that is, changer is a word with a broader meaning than standardiser:

Other hypernyms of standardiser include modifier.

standardiser (noun)	changer (noun)
a person who sets a standard for things to conform to	an automatic mechanical device on a record player that causes new records to be played without manual intervention
	a person who changes something