ENGLISH
REFERENCE

container

n. countable
B1 Intermediate Oxford US //kənˈteɪnɝ// UK //kəntˈeɪnɐ// con·tain·er General-service

n. a box, bottle, or jar that holds things inside it. In the world of computers, it is a special way to package software so it runs the same way on any machine.

n. a receptacle for holding or carrying goods. In a computing context, a lightweight, standalone package of software that includes everything needed to run an application, ensuring consistency across different environments.


SIMPLE

Please put the leftovers in a plastic container.

CONTEXTUAL

The developer used a container to ensure the application would run perfectly on both the testing server and the cloud.

COMPLEX

Modern cloud architecture relies heavily on container technology to isolate processes and manage resources efficiently across distributed networks.

Origin

From Middle English conteyner, equivalent to contain + -er.

Usage

In its computing sense, the word is frequently used as a modifier in phrases like 'container orchestration' or 'container image'.

© 2026 English Reference