Is Enter a Real Word?

Is it correct to say enter in?

The verb enter can be followed by the preposition into. But to enter and to enter into are commonly used in different contexts with differing meanings. In general terms, to enter without the preposition into is used for entering physical spaces, locations or buildings.

Is enter a noun or a verb?

Enter is usually a transitive verb, and it takes a direct object. It is not used with the prepositions into or in: ✗ After entering into university, students make a lot of new friends.