alteration.

A change made to the form, condition, or arrangement of something.

Use it for

Words that belong together

• structural alteration
• minor alteration

On the page

The structural alteration widened the entrance without changing the facade.

Usage notes

Primary category: academic / formal. Forms: Countable or uncountable by context; countable singular alteration; plural alterations. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: analysis, explanation, qualification. Commonness: moderately common.