Definition of extension
- tools are extensions of human hands
extension of the patient's life
He's asking for a contract extension.
Make sure that the muscles get the proper amount of extension.
I missed the deadline but was granted an extension.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'extension.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 15th centurySee Words from the same year
See words that rhyme with extension Thesaurus: All synonyms and antonyms for extension Spanish Central: Translation of extension Nglish: Translation of extension for Spanish speakers Britannica English: Translation of extension for Arabic speakers Britannica.com: Encyclopedia article about extension
What made you want to look up extension? Please tell us where you read or heard it (including the quote, if possible).
Merriam-Webster's New Words Quiz—Fall 2017 Edition!
Can you spell these 10 commonly misspelled words?TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.TAKE THE QUIZ