Definitions

1. noun

something that is added to or attached to something else, especially to increase its size or usefulness

“The new software features several extensions to improve its performance.”

2. noun

a part of an animal’s or a person’s body that is not essential for its main functions, but can be useful or attractive

“The bird’s long feathers are considered an extension of its beautiful plumage.”

3. noun

a period of time added to the end of a fixed period, such as a lease or a contract

“The extension on the lease allowed them to stay in the apartment for another six months.”

4. noun

a part of a building, such as a wing or a room, that is added to the main structure

“The extension to the house included a new living room and a kitchen.”

5. noun

a device or a piece of equipment that is connected to a computer, such as a keyboard or a mouse

“The new extension to my computer allows me to play video games.”

6. verb

to add something to something else, especially to increase its size or usefulness

“The company will extend its services to include more cities.”

7. verb

to stretch or lengthen something, especially a part of the body

“Please extend your arm and reach for the book.”