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Code & Deliverynoun|verb · /ˈbʌndəl/

bundle

In simple English

In software development, bundle has two main uses. First, it refers to a packaged collection of related files or features that are deployed together—for example, shipping a feature bundle with new UI components, API endpoints, and documentation. Second, and more technically, a bundle is the output file created by bundlers like Webpack or Parcel that combine multiple source files into optimized files for browsers. When developers say they are bundling code, they mean using a tool to compress, minify, and organize code for production. In team conversations, you might hear bundle used casually to mean any grouped set of work items or deliverables.

Understand what bundle means in software development and how bundling optimizes code for delivery.

At a glanceCEFR B2
Commonness5/5
Versatility4/5
FormalityCasualFormalNeutral
Spoken ↔ WrittenSpokenWrittenBoth
Directness ↔ DiplomaticDirectDiplomaticDirect
RegionUS and UK
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Say it like this

✓We need to keep the bundle size under 200KB
✓The bundler is taking too long to process
✓Let us ship this feature bundle in the next release

Real examples

in a standup

"We shipped the authentication bundle yesterday, and it reduced our load time by 15 percent."

in a code review

"This bundle includes the payment module and error handling—both were tested thoroughly."

in a team meeting

"Our next bundle will focus on mobile responsiveness and accessibility improvements."

Don't say this

Handle with care. Do not confuse bundle (a collection) with bundling (the process). Also, avoid using bundle to mean only packaging—it also means combining code into a single optimized file.

✕We bundle the files together.
✓We bundle the files into a single package.— Bundle as a verb needs an object; saying bundle together is redundant.
✕The bundle size is very bundle.
✓The bundle size is very large.— Bundle is not an adjective; use adjectives like large, small, or heavy instead.
✕We will bundle this bug fix.
✓We will bundle this bug fix with the next feature release.— Bundle means to group items together; specify what it is being grouped with.

Other forms

noun

bundle

"The JavaScript bundle contains all application code."

verb

bundle

"We bundle the frontend assets every time we deploy."

noun

bundler

"Webpack is a popular bundler tool in the JavaScript ecosystem."

noun

bundling

"The bundling process optimizes code for production environments."

Often used with

bundle sizerefers to the file size of a bundled package; commonly discussed in performance optimization
bundle featurea feature released as part of a larger collection
bundler toolsoftware like Webpack, Parcel, or Rollup that creates bundles
code bundlea packaged collection of source code ready for deployment
bundle analysisexamining bundle size and composition to identify optimization opportunities

Similar words

packagesimilar but more general; bundle is more specific to software and code
modulea smaller, single unit; bundle combines multiple modules together
collectiongeneric term; bundle emphasizes grouped items delivered as one unit

Opposites

splitseparateunbundle

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Practice

Try it

4 quick exercises

Pick the most natural phrasing

1. Your team wants to release several features at once. How would you phrase this?

Complete the sentence

2. The main JavaScript _______ is growing too large and needs optimization.

Spot the mistake

3. Which sentence uses bundle incorrectly?

Rewrite naturally

4. Rewrite this in natural tech English: 'We put together many small code files into one big file and make it smaller for the website.'

Questions

Quick poll

Have you said "bundle" in a standup this week?

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