Synonyms of extension

extension

noun

ik-ˈsten(t)-shən 

1

as in stretching

the act of making longer

the board's extension of the school year drew howls of protest

Synonyms & Similar Words

• stretching
• prolongation
• lengthening
• elongation
• prolonging
• drawing out

Antonyms & Near Antonyms

• shortening
• curtailment
• abbreviation
• cutback
• abridgment

2

as in addition

a smaller structure added to a main building

the new extension will connect the house with what is now a freestanding garage

Synonyms & Similar Words

• addition
• annex
• wing
• penthouse
• arm
• ell

Example Sentences

Recent Examples of extension

This is the modernized centaurian myth; call it the cyborgian myth, where the machine becomes an extension of the man, the car his prosthesis. — Literary Hub, 30 Oct. 2026

His earnings in subsequent years, which include a contract extension last year, will be disclosed in the conference’s future tax filings. — Eben Novy-Williams, Sportico.com, 30 Oct. 2026

But is that still the case when half the Real Housewives have extensions down to their butts? — Molly Mulshine, InStyle, 30 Oct. 2026

An agent needs to know whether the customer has a payment extension or an ongoing dispute before taking action. — Gaurav Aggarwal, Forbes.com, 30 Oct. 2026