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
Full Definition of opening
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 : 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
Examples of opening in a sentence
the opening of a cave
They squeezed through a narrow opening between the fence and an oak tree.
The enemy's troops poured through an opening in our defenses.
We went to the play's opening.
First Known Use of opening
OPENING Defined for Kids
Definition of opening for Students
1 : a place that is not enclosed or covered : clearing
2 : an act of making or becoming ready for use <Neighbors are anxious for the opening of a new store.>
3 : beginning <People who came late missed the opening of the speech.>
4 : 1occasion 3 <He was waiting for an opening to tell the joke.>
5 : a job opportunity <There is an opening in the legal department.>
Medical Definition of opening
1: an act or instance of making or becoming open
2: something (as an anatomical aperture) that is open or opens
Learn More about opening
Seen and Heard
What made you want to look up opening? Please tell us where you read or heard it (including the quote, if possible).