Bottleneck can function as a noun or a verb. Both forms are correct, but the noun is often the more natural choice in workplace writing.
Use a bottleneck or the bottleneck as a noun. As an active verb, you can say a step is bottlenecking a process. You can also use the passive construction: a process is bottlenecked by a constraint.
Quick check: noun or verb form?
Choose the grammatical structure that expresses an active limit on the release.
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Learn "Bottleneck" in depth →Three forms, three patterns
"Noun: 'Legal review is the bottleneck.'"
This is the most familiar grammatical pattern. The article matters: use "a bottleneck" for one possible limit. Use "the bottleneck" when you mean a known or primary limit.
"Active verb: 'The single-reviewer step is bottlenecking every pull request.'"
Here, the limiting step is the grammatical subject. The sentence emphasizes its effect on the review flow. However, "is the bottleneck for" may sound simpler in many contexts.
"Passive verb: 'Onboarding is bottlenecked by a shortage of trained specialists.'"
The passive form puts the affected process first, while the phrase after by identifies the cause. You could also write, "A shortage of trained specialists is the onboarding bottleneck."
Verb forms are valid, yet they can sound technical or unnecessarily dense. Use one when it makes the action clear. Otherwise, the noun form is direct and widely understood.
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Start the "Bottleneck" learning path →Common mistakes
Mistake: the process is bottleneck, treating it as an adjective.
Bare bottleneck does not work after is in that sentence. Use "the process has a bottleneck" or "the process is bottlenecked." Depending on the intended meaning, you could also say "the process is constrained" or "the process is slow."
What verbs go with "bottleneck"?
When bottleneck is a noun, nearby verbs show what is happening. Some verbs describe finding the limit. Others describe its cause or the work to reduce it.
Use identify, find, or diagnose when you locate one:
"'We identified the bottleneck in Tuesday's review.'"
Use become, create, or introduce when one appears:
"'The new approval step is creating a bottleneck we didn't have before.'"
Use remove, eliminate, ease, resolve, or address for a response:
"'We're working to remove the bottleneck by adding a second reviewer.'"
Mistake: "make a bottleneck" or "do a bottleneck." These pairings are not natural in this sense. Choose a verb that matches your claim. You may identify a limit, create one, or work to remove one.
Be careful with claims such as remove and eliminate. Use them only when the limit is truly gone. If the team has only reduced its effect, ease or address may be more accurate.
Practice scenarios
Practice all forms of bottleneck in situations like:
- naming a bottleneck with a noun in a status update
- describing a limiting step with an active or passive verb
- choosing a verb that matches the evidence and response
Useful practice phrases:
- "[Step] is the bottleneck."
- "[Step] is bottlenecking [outcome]."
- "[Process] is bottlenecked by [constraint]."
- "We identified/are removing the bottleneck by [action]."
Use bottleneck as a noun at Vale Robotics
The noun is a useful default. The active and passive verbs can show the limit in action.
Choose the form that makes the process and the constraint easiest to follow.
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