# OST

/ˈoʊst/ (US) · CEFR B1 · Noun

Source: https://englishreference.com/word/ost
Updated: 2026-05-10

## Definition

Stands for Original Soundtrack. The collection of music created for a movie, television show, or video game.

For teachers: Abbreviation for Original Soundtrack. The recorded music accompanying and synchronised to the images of a motion picture, television program, or video game. It functions as a collective noun for the musical score and licensed songs.

## Examples

- The movie was okay, but the OST is amazing.
- Fans of the game often listen to the OST on streaming platforms even when they aren't playing.
- While the film received mixed reviews for its pacing, the OST was universally praised for its evocative use of traditional instruments blended with modern electronic textures.

## Usage notes

- Commonly used in digital contexts and fan communities; often treated as a singular countable noun.

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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.