visit vs send in

visit is a noun but send in is not a noun.

Word	Noun	Adjective	Verb	Adverb
visit	Yes	No	Yes	No
send in	No	No	Yes	No

visit (noun)	send in (noun)
the act of going to see some person in a professional capacity
the act of visiting in an official capacity (as for an inspection)
the act of going to see some person or place or thing for a short time
a temporary stay (e.g., as a guest)
a meeting arranged by the visitor to see someone (such as a doctor or lawyer) for treatment or advice

visit (verb)	send in (verb)
assail	mail in; cause to be delivered
talk socially without exchanging too much information	give one's name or calling card to a servant when making a formal visit
impose something unpleasant
go to certain places as for sightseeing
come to see in an official or professional capacity
pay a brief visit
go to see a place, as for entertainment
stay with as a guest