extension · noun C /ɪkˈsten.tʃən/
extension (EXTRA TIME)
B2 extra time that you are given to do or use something
Dictionary example:
I've applied for an extension of my visa.
extension (TELEPHONE)
B2 a telephone that is connected to the main telephone in an office or other large building
Dictionary example:
Call me on extension 3104.
Learner example:
For further information call 990-643 extension 93. (First Certificate in English; B2; Greek)
extension (DEVELOPMENT)
B2 something that has developed as a result of something else
Dictionary example:
The book is an extension of ideas he set out in an earlier article.
Learner example:
So we might say the computer is the extension of our brain. (First Certificate in English; B2; Chinese)
