subscriber vs ratifier

subscriber and ratifier both are nouns.

Word	Noun	Adjective	Verb	Adverb
subscriber	Yes	No	No	No
ratifier	Yes	No	No	No

As nouns, subscriber and ratifier are synonyms defined as:

Other synonyms of subscriber include endorser, indorser.

subscriber (noun)	ratifier (noun)
someone who contributes (or promises to contribute) a sum of money	someone who expresses strong approval
someone who contracts to receive and pay for a service or a certain number of issues of a publication
someone who expresses strong approval