extension
1 ENTRIES FOUND:
plural
extensions
plural
extensions
Britannica Dictionary definition of EXTENSION
1
:
the act of extending something: such as
a
:
the act of making something longer or greater
[noncount]
-
extension of the patient's life
[count]
-
He's asking for a contract extension.
b
:
the act of straightening or stretching something (such as an arm or a leg)
[count]
-
He did some leg extensions. [=exercises in which you extend your legs]
[noncount]
-
Make sure that the muscles get the proper amount of extension.
2
[count]
:
extra time allowed for doing something
-
I missed the deadline but was granted an extension.
3
[count]
:
something (such as an interest or activity) that develops from something else
— + of
-
Writing screenplays was a natural/logical extension of his career as a novelist and his longtime interest in film.
◊ The phrase by extension is used to say that what follows comes from or is connected with something that has already been mentioned.
-
The new measures benefit taxpayers and, by extension, the economy.
-
He disliked authority and, by extension, all government officials.
4
[count]
a
:
a part that is added on to something to make it larger or longer
-
They built an extension on their house.
-
a road extension
b
:
extension cord
5
[count]
:
an extra telephone that is connected to the main line
-
We've added another extension in our daughter's bedroom.
also
:
a telephone number that connects to a particular extension
-
I dialed her extension, but she wasn't at her desk.
-
Extension 365, please.
