extension number — An additional number used to reach a specific person or department within an organization through the main telephone number
Part of speech: NOUN
Definition: An additional number used to reach a specific person or department within an organization through the main telephone number
Pronunciation (IPA): /ɪkˈstenʃən ˈnʌmbər/
Example Sentences
- The CEO's extension number is top secret - even the janitor has higher security clearance!
- I've memorized everyone's extension number except my own - typical Monday brain!
- For technical support, please call extension 404 - error not found in our system!
extension number
NOUN[/ɪkˈstenʃən ˈnʌmbər/]
An additional number used to reach a specific person or department within an organization through the main telephone number

An additional number used to reach a specific person or department within an organization through the main telephone number

From tension to a new dimension through extension!
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🎤Pronunciation
🌳Etymology
Origin
The term derives from Latin 'extendere' (to stretch out, extend), which evolved from the literal sense of physical extension to describe supplementary telephone lines connected to a main switchboard system. In telecommunications, an 'extension' refers to an additional line that extends the reach of a primary number.
Breakdown
ex- (out) + tendere (stretch, extend) + -sion (noun-forming suffix) + number (numerical identifier). The morphological structure reflects the concept of extending or stretching out from a main telephone line.
🎵Rhyme
🔗Collocations
📝Examples
“The CEO's extension number is top secret - even the janitor has higher security clearance!”
“I've memorized everyone's extension number except my own - typical Monday brain!”
“For technical support, please call extension 404 - error not found in our system!”
“You can reach me at extension 1234 during business hours.”
📚Related Words
Synonyms
Antonyms
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