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Elementary Dictionary
       

ex·ten·sion

extension

 
 
pronunciation:
ihk sten shn
part of speech: noun
definition 1: An extension is the giving of an extra amount of time.
Leslie was able to get an extension on her homework because she had the flu last week.
synonyms:
expansion
similar words:
reach, spread, stretch
definition 2: An extension is something that makes another thing longer.
My dad wants to build an extension to our house.
synonyms:
addition
similar words:
accessory, branch, extra, part, piece
definition 3: An extra telephone line that is connected to the main line is called an "extension."
When I call my mom at her office, I have to dial her phone number and then say the number of her extension.
derivations: extensional (adj.), extensionality (n.)