verb

1. To go or come into an enclosed or partially enclosed space.

   “You should knock before you enter, unless you want to see me naked.”

2. To cause to go (into), or to be received (into); to put in; to insert; to cause to be admitted.

   “to enter a knife into a piece of wood;  to enter a boy at college, a horse for a race, etc.”

3. To go or come into (a state or profession).

   “My twelve-year-old son will be entering his teens next year.  She had planned to enter the legal profession.”

Synonyms: come in, go in, ingo

noun

1. Action of the verb to enter