# Severity Meaning & Pronunciation: Tech English Practice (2026)

> The level or degree of how serious or critical a problem, issue, or bug is in software development.

- **Term:** severity
- **Part of speech:** noun
- **Pronunciation:** /səˈverəti/
- **English level (CEFR):** B2
- **Register:** Neutral, Both
- **Region:** US and UK
- **Topic:** [Agile and project terms](https://app.speaktechenglish.com/learn/topics/agile-project-management-terms.md)
- **Lesson:** https://app.speaktechenglish.com/learn/severity
- **Last updated:** 2026-10-27

## Meaning

The level or degree of how serious or critical a problem, issue, or bug is in software development. It ranks problems from low to critical impact on the system or users.

In tech workplaces, severity is used to prioritize and categorize issues during development, testing, and production. When a bug or problem is discovered, teams assign it a severity level to determine urgency and resource allocation. Common severity levels include Critical (system down or major functionality broken), High (significant functionality impaired), Medium (minor functionality affected), and Low (cosmetic issues or minor inconvenience). Severity differs from priority in that severity measures the impact of the issue, while priority measures when it should be fixed relative to other work. During standup meetings, code reviews, and incident management, teams frequently discuss severity to align on what needs immediate attention versus what can be scheduled for later releases.

## When you hear it

The database connection timeout is marked as Critical severity because it blocks all user logins.

## Examples

- **in a standup:** "The authentication bug we found yesterday has Critical severity, so we're halting all other work to fix it."
- **in a code review:** "This memory leak could impact production, so I would rate its severity as High."
- **in a team meeting:** "We have three Medium severity items and one Low severity item remaining in the sprint."

## What native speakers say

- "What is the severity of this issue?"
- "We need to address the high severity bugs first."
- "This ticket has critical severity."

## Common mistakes

- ✗ "We need to severity this bug immediately." → ✓ "We need to address the severity of this bug immediately." (Severity is a noun, not a verb. You cannot 'severity' something.)
- ✗ "The severity is very serious." → ✓ "The severity is Critical or The issue is very serious." (Severity already indicates seriousness, so using 'serious' together is redundant.)
- ✗ "This bug has low priority but high severity." → ✓ "This bug has low priority but high severity. (This is actually correct)" (This is a valid and common statement. Priority and severity are different dimensions.)

## Be careful

Severity is a noun describing the degree of seriousness, not a verb. Do not use it as 'to severity' or confuse it with 'serious' (adjective).

## Word forms

| Part of speech | Word | Example |
| --- | --- | --- |
| noun | severity | The severity of the outage requires immediate action. |
| noun (plural) | severities | Different severities require different response times. |


## Collocations

- **severity level**: The classified rank of a problem, as in Critical, High, Medium, or Low severity level.
- **high severity**: Used to describe urgent, impactful problems that need prompt attention.
- **critical severity**: Used for the most serious issues that block core functionality or affect production.
- **assign severity**: The act of categorizing or ranking a problem when it is first reported.
- **severity rating**: A numerical or categorical score indicating the seriousness of an issue.

## Synonyms

- **impact**: Impact describes the consequence of a bug, while severity describes how serious it is.
- **criticality**: Criticality and severity are very similar; both describe how serious an issue is.
- **seriousness**: Seriousness is more general and informal; severity is the technical term used in ticketing systems.

## Opposites

- triviality
- insignificance

## Practice

This lesson has 4 practice exercises with instant feedback on the page: https://app.speaktechenglish.com/learn/severity

## FAQ

### What does severity mean in software engineering?

Severity is a classification level that describes how serious or critical a bug, issue, or problem is. It indicates the degree of impact on system functionality and users. Common severity levels are Critical, High, Medium, and Low.

### How is severity different from priority?

Severity measures the seriousness or impact of an issue (how bad it is), while priority measures when it should be fixed relative to other work. An issue can have high severity but low priority (we know it is serious but we will fix it later), or low severity but high priority (it is not critical but we want to fix it soon).

### What are typical severity levels?

Most tech companies use four severity levels: Critical (system is down or core functionality is broken), High (significant functionality is impaired), Medium (minor functionality is affected), and Low (cosmetic issues or workarounds exist).

### How do you use severity in a sentence at work?

Use it as a noun: The severity of this bug is High and it needs to be fixed before release. Or: What severity level should we assign to this issue? Never use it as a verb (do not say to severity something).

### Is severity formal or informal?

Severity is neutral and professional. It is standard terminology in all tech companies and is equally appropriate in standups, emails, documentation, and formal incident reports.


## Related

- [priority](https://app.speaktechenglish.com/learn/priority.md)
- Full glossary: https://app.speaktechenglish.com/learn.md
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