extension Synonym

expansion - prolongation - enlargement - addition - augmentation - increase - lengthening - continuation - supplement - annex - addendum - appendage - adjunct - elongation - amplification - spread - broadening - outgrowth - prolonging - stretch - enhancement - development - proliferation - escalation - growth - widening - increment - prolongment - extension cord - add-on - extra - protraction - reach - span - tailpiece - wing

An extension refers to the process or act of enlarging, expanding, or extending something. It often implies making an addition to something to increase its size, scope, or range. In technology, for instance, a browser extension enhances the functionality of a web browser by adding new features, while in programming, file extensions indicate the type of data that a file holds. Extensions can apply to various fields like architecture, education, and software engineering, involving additional parts or supplements to existing structures or systems.