enter

Concise Oxford English Dictionary © 2008 Oxford University Press:
enter/ˈentə(r)/

▶verb

• 1 come or go into (a place).

  ■ penetrate: the bullet entered his stomach.

  ■ (enter on/upon) Law (as a legal entitlement) go freely into (property) as or as if the owner.

• 2 (often enter into) begin to be involved in.

  ■ (enter on/upon) begin (an activity or job).

  ■ join (an institution or profession).

  ■ register as a competitor or participant in.

  ■ register (someone) in a competition or examination.

  ■ (enter into) undertake to bind oneself by (an agreement).

• 3 write or key (information) in a book, computer, etc.

• 4 Law submit (a statement) in an official capacity, usually in a court of law.

– origin ME: from OFr. entrer, from L. intrare, from intra ‘within’.