enter on


verb (used without object)
to come or go in: Knock before you enter.
to be admitted into a school, competition, etc.: Some contestants enter as late as a day before the race.
to make a beginning (often followed by on or upon ): We have entered upon a new phase in history.
Theater. to come upon the stage (used in stage directions as the 3rd person imperative singular or plural): Enter Othello, and Iago at a distance.
verb (used with object)
to come or go into: He just entered the building. The thought never entered my mind.
to penetrate or pierce: The bullet entered the flesh.
to put in or insert.
to become a member of; join: to enter a club.
to cause to be admitted, as into a school, competition, etc.: to enter a horse in a race.
to make a beginning of or in, or begin upon; engage or become involved in: He entered the medical profession.
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.
to make a record of; record or register: to enter a new word in a dictionary.
to make a formal record of (a fact).
to occupy or to take possession of (lands); make an entrance, entry, ingress in, under claim of a right to possession.
to file an application for (public lands).
Computers. to put (a document, program, data, etc.) into a computer system: Enter your new document into the word-processing system.
to put forward, submit, or register formally: to enter an objection to a proposed action; to enter a bid for a contract.
to report (a ship, cargo, etc.) at the custom house.
Verb phrases
enter into,
to participate in; engage in.
to investigate; consider: We will enter into the question of inherited characteristics at a future time.
to sympathize with; share in.
to form a constituent part or ingredient of: There is another factor that enters into the situation.
to go into a particular state: to enter into a state of suspended animation.

1200–50; Middle English entren < Old French entrer < Latin intrāre to enter, derivative of intrā within

enterable, adjective
enterer, noun
preenter, verb (used without object)
unenterable, adjective
unentered, adjective
well-entered, adjective

enter, inter.

1. leave. 7. remove.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
enter (ˈɛntə)
vb (when intr, foll by into) (when intr, often foll by into, on, or upon) (often foll by upon)
1.  to come or go into (a place, house, etc)
2.  to penetrate or pierce
3.  (tr) to introduce or insert
4.  to join (a party, organization, etc)
5.  to become involved or take part (in): to enter a game; to enter into an agreement
6.  (tr) to record (an item such as a commercial transaction) in a journal, account, register, etc
7.  (tr) to record (a name, etc) on a list
8.  (tr) to present or submit: to enter a proposal
9.  (intr) theatre to come on stage: used as a stage direction: enter Juliet
10.  to begin; start: to enter upon a new career
11.  to come into possession (of)
12.  (tr) to place (evidence, a plea, etc) before a court of law or upon the court records
13.  (tr) law
 a.  to go onto and occupy (land)
 b.  chiefly (US) to file a claim to (public lands)
[C13: from Old French entrer, from Latin intrāre to go in, from intrā within]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

mid-13c., from O.Fr. entrer, from L. intrare, from intra "within," related to inter (prep., adj.) "among, between."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

enter- pref.
Variant of entero-.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Idioms & Phrases

enter on

Also, enter upon. Set out, begin, as in We are entering on a new era, or They entered upon the most difficult part of the research. [Early 1600s]

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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