Docker
Software Engineering · Last updated: July 30, 2026 · How this entry was written
Definition: Docker is a platform for developing, shipping, and running applications inside lightweight containers. It ensures consistency across development, testing, and production environments.
Example in context
“The team uses Docker to containerize the microservices so they run identically on every developer's machine.”
“The team uses Docker to containerize the microservices so they run identically on every developer's machine.”
Where engineers use it
Docker is commonly used to build and deploy applications in isolated containers, ensuring environment consistency. Engineers rely on Docker for CI/CD pipelines and local development setups.
Practice: can you use “Docker” at work?
A new developer struggles with environment differences between their laptop and the production server. They must use Docker to replicate the production environment.
Show a model answer
“Build a Docker image for the application and run it locally.”
“Docker” in 21 languages
| English | Docker |
|---|---|
| Turkish | Docker |
| French | Docker |
| German | Docker |
| Spanish | Docker |
| Chinese | Docker |
| Arabic | دوكر |
| Portuguese | Docker |
| Russian | Докер |
| Japanese | Docker |
| Italian | Docker |
| Vietnamese | Docker |
| Hindi | डॉकर |
| Thai | ด็อกเกอร์ |
| Indonesian | Docker |
| Korean | 도커 |
| Bengali | ডকার |
| Dutch | Docker |
| Swedish | Docker |
| Finnish | Docker |
| Ukrainian | Докер |
Frequently asked questions
What does Docker mean in engineering?
Docker is a platform for developing, shipping, and running applications inside lightweight containers. It ensures consistency across development, testing, and production environments. In Software Engineering, the term carries a usage-frequency rating of 10/10 in the Engineering English library.
How do you pronounce Docker?
Docker is pronounced /ˈdɑːkər/ (IPA). The Engineering English app plays audio for the term and checks your pronunciation with speech recognition.
How is Docker used in a sentence?
Example from an engineering context: “The team uses Docker to containerize the microservices so they run identically on every developer's machine.”
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