enquirer vs asker

enquirer and asker both are nouns.

Word	Noun	Adjective	Verb	Adverb
enquirer	Yes	No	No	No
asker	Yes	No	No	No

As nouns, enquirer and asker are synonyms defined as:

Other synonyms of enquirer include inquirer, querier, questioner.

enquirer (noun)	asker (noun)
someone who asks a question	someone who asks a question