changer vs standardizer

changer and standardizer both are nouns.

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

As nouns, standardizer is a hyponym of changer; that is, standardizer is a word with a more specific, narrower meaning than changer:

Other hyponyms of changer include adulterator, normaliser, normalizer, standardiser.

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