English Reference
noun

modification

n.
US /ˌmɑdəfəˈkeɪʃən/ UK /mˌɒdɪfɪkˈeɪʃən/ mod·i·fi·ca·tion UK spelling modifications

  1. 01 B2 Upper Intermediate

    a small change made to something to improve it or make it more suitable.

    the act of making a minor alteration or adjustment to something while keeping its essential character intact.

    Simple

    The engineers made a slight modification to the engine to help it use less fuel.

    In context

    The architect suggested a minor modification to the original floor plan to allow for more natural light in the central hallway.

  2. 02 C1 Advanced AcademicTechnical Science

    the way a word's meaning is changed or limited by another word.

    the structural relationship where one word or phrase limits or qualifies the meaning of another.

    Simple

    In the phrase 'red apple', the word 'red' is a modification of 'apple'.

    In context

    The student struggled with noun modification, often placing the adjective after the noun instead of before it.

    Usage

    In linguistics, this refers to the relationship between a head and its dependents.

  3. 03 C1 Advanced Technical Science

    a change in a living thing caused by its environment that is not passed on to its babies.

    a non-heritable change in an organism's phenotype resulting from environmental influence.

    Simple

    The plant's smaller leaves were a modification caused by the dry soil, not its genes.

    In context

    Biologists distinguish between genetic mutations and environmental modifications that do not alter the underlying DNA sequence of the species.

Usage require modification

The FAA gave airlines until July 2028 to complete the modifications, and the NTSB report found the required changes had not yet been made to the Ryanair plane.

The Guardian· 14 Aug 2026

In one of the few modifications made since Wagner’s time, a tiny air-con unit has been fitted.

The Guardian· 10 Aug 2026

From Middle English modificatioune, from Middle French modification and its etymon Latin modificātiō (“a measuring”), from modificāre (“to limit, control, modify”); see modify. By surface analysis, modify + -ication.

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

This entry
Origin Latin modificātiō
Level C1 · Advanced
Frequency Frequent
Updated