Is It Incidence or Incidents? Difference, Examples, and Easy Rule

Incidence means the rate or occurrence of something. Incidents means events or things that happened. The best way to choose between them is to ask what the sentence is actually trying to say.

The incidence of flu increased in winter.
Several incidents were reported last night.

These words are easy to confuse because they look similar, sound similar, or appear in common writing situations. Still, they do not mean the same thing. Use incidence when you mean the rate or occurrence of something. Use incidents when you mean events or things that happened.

Incidence vs. Incidents at a glance

Word	Part of speech	Meaning	Example
incidence	noun	the rate or occurrence of something	The incidence of flu increased in winter.
incidents	plural noun	events or things that happened	Several incidents were reported last night.

Quick rule:

Incidence = the rate or occurrence of something.
Incidents = events or things that happened.
If the definition does not fit the sentence, switch to the other word.

When to use incidence

Use incidence when the sentence is about the rate or occurrence of something. This word fits when that meaning is the main idea.

Examples:

The incidence of flu increased in winter.
The sentence uses incidence because it means the rate or occurrence of something.
A reader would understand the sentence clearly with incidence here.
If the sentence is about a different idea, test incidents instead.

One useful editing habit is to replace the word with its definition. If the sentence still makes sense, the word is probably correct. If the sentence becomes strange, you likely need the other word.

When to use incidents

Use incidents when the sentence is about events or things that happened. Even if it sounds like incidence, it gives the reader a different meaning.

Examples:

Several incidents were reported last night.
The sentence uses incidents because it means events or things that happened.
Replacing it with incidence would make the sentence inaccurate.
The correct choice depends on meaning, not on sound alone.

This distinction matters in edited writing because one wrong word can distract the reader and weaken an otherwise clear sentence.

The easiest memory trick

Incidence is a rate or occurrence. Incidents are events.

You can also use this question:

> Is the sentence about the rate or occurrence of something, or is it about events or things that happened?

If the first meaning fits, choose incidence. If the second meaning fits, choose incidents.

Common phrases with incidence

incidence rate
high incidence
incidence of disease
low incidence

Examples:

The phrase incidence rate uses incidence because it connects to the rate or occurrence of something.
The phrase high incidence follows the same meaning pattern.
Learning common phrases makes the right choice easier when you write quickly.

Common phrases with incidents

traffic incidents
reported incidents
separate incidents
serious incidents

Examples:

The phrase traffic incidents uses incidents because it connects to events or things that happened.
The phrase reported incidents is another common pattern.
If a phrase looks wrong, check the meaning before changing the spelling.

Common mistakes and corrections

Incorrect	Correct	Why
The incidents of flu increased in winter.	The incidence of flu increased in winter.	The sentence needs incidence because it means the rate or occurrence of something.
Several incidence were reported last night.	Several incidents were reported last night.	The sentence needs incidents because it means events or things that happened.

More corrections:

Incorrect: I chose the word because it sounded familiar.
Correct: I chose the word because its meaning matched the sentence.
Incorrect: I treated both words as interchangeable.
Correct: I kept incidence and incidents separate.

The same context-first habit also helps with Capital vs. Capitol and Causal vs. Casual. For a wider set of examples in this topic, use the Similar Words archive as the category grows.

More example sentences

Examples with incidence:

The incidence of flu increased in winter.
The editor chose incidence because it matched the intended meaning.
In this sentence, incidence is clear and natural.
The sentence would change meaning with incidents.

Examples with incidents:

Several incidents were reported last night.
The teacher accepted the sentence because incidents was accurate.
In this context, incidents cannot be replaced by incidence.
The word choice tells the reader exactly what you mean.

Why this difference matters

Small word-choice errors can make a polished sentence look careless. In a text message, the reader may still understand you. In school work, job applications, business emails, medical writing, legal writing, or public content, the wrong word can reduce trust.

The practical fix is simple: slow down for confusing pairs, define the word in plain English, and choose the spelling that matches the meaning. This habit works for incidence and incidents, and it works for many other confusing English words.

If you edit your writing aloud, listen for the idea behind the sentence. Sound can help you notice a problem, but meaning should make the final decision.

Extra editing check

Before you publish or submit important writing, test the word in a full sentence. If the definition does not fit naturally, switch to the other word. This extra check is especially useful when the words are close in spelling or pronunciation. It also helps you avoid repeating the same mistake in emails, essays, forms, and professional documents.

Quick quiz

Choose the correct word.

The incidence of flu increased in winter.
Several incidents were reported last night.
Which word means the rate or occurrence of something: incidence or incidents?
Which word means events or things that happened: incidence or incidents?

Answers:

incidence
incidents
incidence
incidents

FAQ

Is incidence the same as incidents?

No. incidence means the rate or occurrence of something, while incidents means events or things that happened. They should not be used as substitutes.

How do I remember incidence vs. incidents?

Use the meaning test. Ask what the sentence is actually saying, then choose the word that matches that meaning.

Which word is more common?

It depends on the topic. Frequency is less important than accuracy. Choose the word that makes the sentence true and clear.

Can these words appear in formal writing?

Yes. Both words can appear in formal writing when used correctly. The important part is choosing the one that fits the sentence.

Final tip

Do not choose between incidence and incidents by sound alone. If the sentence means the rate or occurrence of something, use incidence. If it means events or things that happened, use incidents.