# TDD

CEFR C1 · Noun

Source: https://englishreference.com/word/tdd
Updated: 2026-07-22

## Definition

Stands for Test-Driven Development. A way of writing computer code where you write a test for a small feature before you actually write the code for it.

For teachers: Abbreviation for Test-Driven Development. A software development process relying on the repetition of a very short development cycle: requirements are turned into very specific test cases, then the software is improved so that the tests pass.

## Examples

- Our team uses TDD to ensure our code has fewer bugs.
- By adopting TDD, the engineering department noticed a significant decrease in regression errors during the final stages of the project.
- While TDD can initially slow down the development phase, it often results in a more modular and maintainable codebase that is easier to refactor over time.

## Usage notes

- Commonly used in technical and software engineering contexts; often functions as an attributive noun in phrases like 'TDD approach' or 'TDD cycle'.

---

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.