extension

Reading level: hard

Estimated CEFR level: B2 — Upper-Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

noun a mutually agreed delay in the date set for the completion of a job or payment of a debt
noun act of expanding in scope; making more widely available
noun the spreading of something (a belief or practice) into new regions

From Middle English extensioun, from Old French estension, from Latin extensiō, extensiōnem.

She said after dialing his intercom extension. — Terminal Compromise, Winn Schwartau
The structure needed merely extension, not rebuilding. — William Pitt and national revival, J. Holland (John Holland) Rose
My last extension expires, and they're on me. — Just Around the Corner: Romance en casserole, Fannie Hurst

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