invite vs ask in

invite is a noun but ask in is not a noun.

Word	Noun	Adjective	Verb	Adverb
invite	Yes	No	Yes	No
ask in	No	No	Yes	No

As verbs, invite and ask in are synonyms defined as:

invite (noun)	ask in (noun)
a colloquial expression for invitation

invite (verb)	ask in (verb)
ask someone in a friendly way to do something	ask to enter
request the participation or presence of
ask to enter
express willingness to have in one's home or environs
give rise to a desire by being attractive or inviting
increase the likelihood of
invite someone to one's house
have as a guest