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Definition of extender
extender
/ɪkˈstɛndər/
ex · tend · er
Plural:extenders
•Adjective:extendable
extender Lexical Profile
CEFR
B2
Grade
8
Tier
2
Usage
Top 10k
Syllables
3
extender Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A device, attachment, or component used to increase the length, reach, or coverage range of something, such as a tool, cable, or wireless signal.
Example
"We plugged a wireless range extender into the hallway outlet so the internet signal would reach the upstairs bedrooms."
2
An inexpensive substance added to a bulk material, such as paint, glue, plastic, or food, to increase its volume, dilute its concentration, or modify its physical properties.
Example
"The manufacturer added an acrylic extender to the paint so it would dry more slowly in hot weather."
Synonyms
View all synonyms for extenderWord Nuance & Usage
Do not confuse 'extender' (a mechanical device or chemical additive that increases length, reach, or volume) with 'extensor' (an anatomical muscle that straightens or extends a limb or joint).
• Rhymes for extender
• Nearby Words
Cite this Entry
Wordmom. (2026). Definition of Extender. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/extender