The meaning of EXTENSION is the action of extending : state of being extended. How to use extension in a sentence.

EXTENSION definition: an act or instance of extending, lengthening, stretching out, or enlarging the scope of something. See examples of extension used in a sentence.

EXTENSION meaning: 1. the fact of reaching, stretching, or continuing; the act of adding to something in order to make…. Learn more.

Definition of extension noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Something that is an extension of something else is a development of it that includes or affects more people, things, or activities.

An addition that increases the area, influence, operation, or contents of something: an extension for the vacuum cleaner; built a new extension onto the hospital wing.

an addition: a four-room extension to a house. an additional period of time given one to meet an obligation: My term paper wasn't finished so I asked for an extension.

An extension is the act of getting more time, space, or length, like an extension of a deadline that gives you one more day to turn in a paper, or extensions that make your hair look longer. The noun …

• He was already reaching for his phone, jabbing an extension number. • This can be achieved by dialling: followed by the four digit extension number.

EXTENSION meaning: 1 : the act of extending something: such as; 2 : the act of making something longer or greater