# abbreviation

/əˌbɹiviˈeɪʃən/ (US) · /ɐbɹˌiːvɪˈeɪʃən/ (UK)

Source: https://englishreference.com/word/abbreviation
Updated: 2026-05-01

## Senses

### 1. shortened word

noun · CEFR B1

a short form of a word or phrase used to represent the whole thing.

For teachers: a shortened or contracted form of a word or phrase used to represent the whole, often involving the omission of letters.

- The abbreviation 'USA' stands for the United States of America.
- The technical manual was dense with abbreviations that required a separate glossary for the junior engineers to navigate effectively.

Usage: Countable in this sense; often followed by the preposition 'for'.

### 2. the act of shortening

noun · CEFR B2

the process of making a piece of writing or a name shorter.

For teachers: the act or process of abbreviating or shortening something, such as a text or a biological process.

- The abbreviation of the long report took several hours of editing.
- The editor suggested the abbreviation of the final chapter to ensure the book remained within the publisher's strict page limit.

Usage: Can be used uncountably to refer to the general process.

### 3. musical notation

noun · CEFR C1 · Technical

a symbol in music that tells the player how to play a note or how loud to be.

For teachers: a notation in a musical score used to indicate a direction or to represent repeated notes to save space.

- The composer used the abbreviation 'mf' to show the music should be medium-loud.
- The score utilized various abbreviations, such as dashes through the stems of notes, to indicate rapid repetition without cluttering the staff.

Usage: Countable; refers specifically to standardized symbols like 'pp' or 'cresc.'

### 4. math/science reduction

noun · CEFR C2 · Technical · Academic

making a fraction or a biological process simpler or shorter.

For teachers: the reduction of a mathematical expression to lower terms or the evolutionary loss of ancestral stages in biology.

- The abbreviation of the fraction made the math problem much easier to solve.
- In evolutionary biology, abbreviation refers to the loss of the final stages of an ancestral pattern during a species' development.

Usage: Used primarily in academic or technical literature.

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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.