English Reference
verb

extend

v.
US /ɪkˈstɛnd/ UK /ɛkstˈɛnd/ ex·tend UK spelling extending, extends

  1. 01 B1 Intermediate

    to make something bigger or longer in space.

    to increase the physical length, area, or scope of something.

    Simple

    The family decided to extend their kitchen to make room for a larger dining table.

    In context

    The city council plans to extend the light rail system into the northern suburbs to alleviate morning traffic congestion.

  2. 02 B1 Intermediate

    to make something continue for a longer time.

    to prolong the duration of an event, deadline, or period of time.

    Simple

    The teacher agreed to extend the deadline for the essay until Friday.

    In context

    The government decided to extend the tax incentive for another fiscal year to encourage further investment in renewable energy.

  3. 03 B2 Upper Intermediate

    to reach a certain point or cover a specific distance.

    to occupy a certain space or reach a specific physical limit.

    Simple

    The forest extends for miles along the coast.

    In context

    The property line extends all the way to the river bank, though the fence stops several meters short of the water.

  4. 04 B2 Upper Intermediate Formal

    to offer something to someone, like an invitation, thanks, or a hand.

    to formally offer or bestow a gesture, invitation, or sentiment.

    Simple

    I would like to extend a warm welcome to our guest speaker today.

    In context

    The CEO extended an invitation to the junior analysts to join the strategy meeting, seeking a fresh perspective on the market trends.

    offerproffergive
  5. 05 C1 Advanced Technical Medicine

    to straighten out your arm or leg.

    to straighten a joint or limb, increasing the angle between the bones.

    Simple

    Extend your arms fully above your head while you breathe in.

    In context

    The physical therapist instructed the patient to slowly extend the knee until the leg was completely straight, monitoring for any signs of discomfort.

  6. 06 C1 Advanced Technical Computing

    to use an existing set of computer code to build a new, more specific one.

    to create a subclass that inherits the properties and methods of a parent class.

    Simple

    In this program, the 'Car' class will extend the 'Vehicle' class.

    In context

    By choosing to extend the base controller, the developer was able to reuse the authentication logic without duplicating code across the application.

Usage extend far · easily extend · extend analysis

Jon Fosse’s Septology extends a single sentence over seven volumes.

The Guardian· 13 Aug 2026

London continues to extend its lead with 32.7% of pupils receiving grade A or above, up from 31.9% last year.

The Guardian· 13 Aug 2026

From Middle English extenden, from Anglo-Norman extendre, estendre, from Latin extendō (“to stretch out”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin extendō
Level B2 · Upper Intermediate
Frequency Common
Updated