inquire vs ask

inquire and ask both are verbs.

Word	Noun	Adjective	Verb	Adverb
inquire	No	No	Yes	No
ask	No	No	Yes	No

As verbs, inquire and ask are synonyms defined as:

Other synonyms of inquire include enquire.

inquire (verb)	ask (verb)
have a wish or desire to know something	make a request or demand for something to somebody
address a question to and expect an answer from	direct or put; seek an answer to
conduct an inquiry or investigation of	address a question to and expect an answer from
	consider obligatory; request and expect
	require or ask for as a price or condition
	make a date
	require as useful, just, or proper