Detonator vs Trigger

When to use each in English, with meaning, register, and examples.

Detonator

Beyond 10,000 (less common)

Trigger

Top 1,000 (very common) B2 verb

Most common: Trigger

	Detonator	Trigger
Pronunciation	🇬🇧 //ˈdɛtəneɪtə// 🇺🇸 //ˈdɛtəˌneɪtɚ//	🇬🇧 /["/ˈtrɪɡə(r)/","/ˈtrɪɡəz/","/ˈtrɪɡəd/","/ˈtrɪɡərɪŋ/"]/ 🇺🇸 /["/ˈtrɪɡər/","/ˈtrɪɡərz/","/ˈtrɪɡərd/","/ˈtrɪɡərɪŋ/"]/
Meaning	A device that causes an explosion.	To cause something to happen.
Example	The technician carefully connected the detonator to the charges.	Nuts can trigger off a violent allergic reaction.
Register	Neutral	Neutral
How common	Beyond 10,000 (less common)	Top 1,000 (very common)
CEFR level	-	B2
Part of speech		verb
Collocations	safety detonator, electronic detonator, manual detonator	trigger a response, trigger an alarm, trigger emotions, trigger a memory, trigger a reaction
Antonyms	-	calm, deactivate, stop
Common mistakes	Confused with 'detonate', which is the action of exploding., Misunderstood the term in non-explosive contexts., Incorrect pluralization (e.g., 'detonators' should not be confused with 'detonater').	Using 'trigger' without an object (e.g. 'The noise triggered' instead of 'The noise triggered a reaction')., Confusing with 'triggered' as a noun., Mixing up with 'impact' or 'affect' too broadly.
Usage notes	Used primarily in contexts related to explosives or fireworks. Avoid in casual conversations unless discussing relevant topics such as safety or military.	Commonly used in both casual and formal contexts. Often used to describe a cause-and-effect relationship, especially in psychology or discussions about emotions. Avoid when discussing less serious or trivial matters.

See it in real clips

FIRST MATE: Looks like some kind of detonator.

Detonator

- You don't know how to shut up. - Pull the trigger, already!

I put a special tape on the trigger and the butt. Try it.

- You don't know how to shut up. - Pull the trigger, already!

I put a special tape on the trigger and the butt. Try it.

Trigger

Frequently asked questions: Detonator vs Trigger

What's the difference between Detonator and Trigger?

Detonator: A device that causes an explosion. Trigger: To cause something to happen.

Which is more common: Detonator and Trigger?

Trigger is the most common in everyday English.

Can you show an example of each?

Detonator: The technician carefully connected the detonator to the charges. Trigger: Nuts can trigger off a violent allergic reaction.

Can I use Detonator and Trigger interchangeably?

Not always. Detonator and Trigger are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.