Another word for extension

Add-on, amplification, continuation, increased time, and delay are another word for extension. Retrogression and regression are the opposites of extension. On this page, find 44 synonyms for extension, parts of speech, and examples of extension sentences.

Extension synonyms

1. addition

  • Add-on
  • Addendum
  • Addition
  • Adjunct
  • Annexe
  • Appendage
  • Appendix
  • Augmentation
  • Supplement
  • Supplementary building
  • Wing
  • Ell

2. expansion

  • Amplification
  • Augmentation
  • Broadening
  • Continuation
  • Deepening
  • Development
  • Diversification
  • Elongation
  • Enhancement
  • Enlargement
  • Expansion
  • Growth
  • Heightening
  • Increase
  • Lengthening
  • Stretching
  • Widening
  • Drawing out

3. prolongation

  • Continuation
  • Deferral
  • Delay
  • Increase
  • Increased time
  • Lengthening
  • Longer period
  • More/extra time
  • Perpetuation
  • Postponement
  • Prolongation
  • Protraction
  • Additional time

Extension sentences

The deadline received an extension.

She requested an extension politely.

The project needed an extension.

He installed a browser extension.

The house got an extension.

Extension parts of speech

Noun