enter

/ˈɛntər/
verb
  1. To go or come into a place.
    • Please knock before you enter the room.
    • The children entered the museum through the main doors.
    • He entered the building quietly so as not to disturb anyone.
  2. To begin to take part in an activity, competition, or profession.
    • She decided to enter the race for class president.
    • The team entered the tournament with high hopes.
    • Many young people enter the technology field after college.
  3. To write or type information into a record, list, or computer system.
    • The librarian entered the new books into the catalog.
    • Please enter your username and password to log in.
    • He entered the data carefully to avoid mistakes.
  4. To become a part of or be included in something, such as a period of time or a state.
    • The country entered a period of economic growth.
    • As winter enters, temperatures begin to drop.
    • The project entered its final phase last week.
Antonyms