<p><strong>Verb (used without object)</strong></p><ul><li>to come or go in: Knock before you enter.</li><li>to be admitted into a school, competition, etc.: Some contestants enter as late as a day before the race.</li><li>to make a beginning (often followed by on or upon): We have entered upon a new phase in history.</li><li>to come upon the stage (used in stage directions as the 3rd person imperative singular or plural): Enter Othello, and Iago at a distance.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to come or go into: He just entered the building.</li><li>to penetrate or pierce: The bullet entered the flesh.</li><li>to put in or insert.</li><li>to become a member of; join: to enter a club.</li><li>to cause to be admitted, as into a school, competition, etc.: to enter a horse in a race.</li><li>to make a beginning of or in, or begin upon; engage or become involved in: He entered the medical profession.</li><li>to share in; have an intuitive understanding of: In order to appreciate the novel, one must be able to enter the spirit of the work.</li><li>to make a record of; record or register: to enter a new word in a dictionary.</li><li>Law: to make a formal record of (a fact).</li><li>to occupy or to take possession of (lands); make an entrance, entry, ingress in, under claim of a right to possession.</li><li>to file an application for (public lands).</li><li>Computers: to put (a document, program, data, etc.) into a computer system: Enter your new document into the word-processing system.</li><li>to put forward, submit, or register formally: to enter an objection to a proposed action; to enter a bid for a contract.</li><li>to report (a ship, cargo, etc.) at the custom house.</li></ul><p><strong>Verb Phrase</strong></p><ul><li>to participate in; engage in.</li><li>to investigate; consider: We will enter into the question of inherited characteristics at a future time.</li><li>to sympathize with; share in.</li><li>to form a constituent part or ingredient of: There is another factor that enters into the situation.</li><li>to go into a particular state: to enter into a state of suspended animation.</li></ul>