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noun open·ing \ˈōp-niŋ, ˈō-pə-\

Simple Definition of opening

  • : a hole or empty space that you can go through

  • : the first part of something

  • : the first time that something happens

Source: Merriam-Webster's Learner's Dictionary

Full Definition of opening

  1. 1 a :  an act or instance of making or becoming open b :  an act or instance of beginning :  commencement; especially :  a formal and usually public event by which something new is put officially into operation

  2. 2 :  something that is open: as a (1) :  breach, aperture (2) :  an open width :  span b :  an area without trees or with scattered usually mature trees that occurs as a break in a forest c :  two pages that face one another in a book

  3. 3 :  something that constitutes a beginning: as a :  a usually planned series of moves made at the beginning of a game of chess or checkers — compare endgame, middle game b :  a first performance

  4. 4 a :  occasion, chance b :  an opportunity for employment

Examples of opening in a sentence

  1. the opening of a cave

  2. They squeezed through a narrow opening between the fence and an oak tree.

  3. The enemy's troops poured through an opening in our defenses.

  4. We went to the play's opening.

13th Century

First Known Use of opening

13th century

OPENING Defined for Kids


noun open·ing \ˈō-pə-niŋ, ˈōp-niŋ\

Definition of opening for Students

  1. 1 :  a place that is not enclosed or covered :  clearing

  2. 2 :  an act of making or becoming ready for use <Neighbors are anxious for the opening of a new store.>

  3. 3 :  beginning <People who came late missed the opening of the speech.>

  4. 4 :  1occasion 3 <He was waiting for an opening to tell the joke.>

  5. 5 :  a job opportunity <There is an opening in the legal department.>

Medical Dictionary


noun open·ing \ˈōp-(ə-)niŋ\

Medical Definition of opening

  1. 1:  an act or instance of making or becoming open

  2. 2:  something (as an anatomical aperture) that is open or opens

Seen and Heard

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of a yellow-green or bluish-gray color

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