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

Federal prosecutors at first balked at the extension request. — Thomas Tracy, New York Daily News, 18 July 2026

The star center signed a five-year, $75 million contract extension with the Chicago Blackhawks, the team announced Saturday. — Kalen Lumpkins, Chicago Tribune, 18 July 2026

Wilkins didn’t get an extension done but returned to practice the week before the regular season when negotiations were cut off. — Omar Kelly, Miami Herald, 17 July 2026

Even the Oklahoma City Thunder, who are still sitting on a huge haul of future draft capital, had to start trimming their supporting cast this offseason because Chet Holmgren and Jalen Williams’ max extensions kicked in. — Bryan Toporek, Forbes.com, 17 July 2026