# alteration

/ˌɔɫtɝˈeɪʃən/ (US) · /ˌɒltəɹˈeɪʃən/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/alteration
Updated: 2026-05-04

## Definition

a small change to something, such as clothes or a plan. You use this when you modify an existing thing rather than replacing it completely.

For teachers: a minor modification or adjustment to an existing object, plan, or state. Often implies a change in form or appearance rather than a complete replacement.

## Examples

- The tailor made a small alteration to the jacket.
- She requested an alteration to the contract before signing the final agreement.
- The building underwent significant alteration during the renovation, blending modern glass elements with the original stone façade.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.