Extension
The act of making something longer or larger, or the added portion that increases length, time, or space.
nounExtension
The act of making something longer or larger, or the added portion that increases length, time, or space.
nounImagine This
Picture a town approving a new wing for the public library. The old building stretches into a bright, new reading roomβthe extension that adds length and space for more books and seating.
Sounds Like
ik-STEN-shΙn
Looks Like
Shares root with extend and extent; visually resembles 'extent' and often ends with the -sion suffix.
Remember This
Extension can refer to time (deadline extension), space or structure (an added wing), or a phone extension. Itβs also the noun form of the verb extend.
Other Forms
Connect With
expansion, enlargement, prolongation, augmentation, addition
Note
Common mistakes: confuse extension with extensive (which means broad in scope). Use extension to denote an actual addition or a lengthened period; use extensive to describe wide coverage. For phone systems, extension numbers are used to reach specific desks or rooms.