Alarm vs Shock

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

Alarm

Top 1,000 (very common) B1 noun

Shock

Top 1,000 (very common) B2 noun

	Alarm	Shock
Pronunciation	🇬🇧 /["/əˈlɑːm/"]/ 🇺🇸 /["/əˈlɑːrm/"]/	🇬🇧 /["/ʃɒk/"]/ 🇺🇸 /["/ʃɑːk/"]/
Meaning	A loud noise to wake you up or warn you.	A sudden feeling of surprise or fear.
Example	I set my alarm for 6 AM to wake up early for my workout.	The news of his sudden departure was a shock to everyone in the office.
Register	Neutral	Neutral
How common	Top 1,000 (very common)	Top 1,000 (very common)
CEFR level	B1	B2
Part of speech	noun	noun
Collocations	false, give, raise, sound, call, fire, smoke, burglar, set, activate, set off, go off, ring, sound, bell, clock, system, considerable, great, growing, cause, create, provoke, in alarm, to somebody’s alarm, with alarm, cause for alarm	awful, big, considerable, come as, feel, get, tactics, value, jock, in shock, with a shock, shock at, a bit of a shock, quite a shock, something of a shock, deep, severe, mild, be in, be suffering from, suffer, massive, severe, mild, get, receive, give somebody, therapy
Antonyms	calm, peace	calm, comfort, ease
Common mistakes	Using 'alarmed' incorrectly as a noun instead of the sound., Confusing 'alarm' with 'alert' in emergency contexts., 'Alarm' can be thought of as both a sound and a noun, varying its usage.	Confused with 'shocked' as an adjective, forgetting the noun form., Using 'shock' when describing a mild surprise instead of something severe., Mixing up 'shock' with unrelated words like 'surprise' or 'alarm'.
Usage notes	Use 'alarm' when referring to a sound that alerts someone. It's commonly used for morning wake-ups or emergency situations. Avoid using 'alarm' in very casual contexts unless it refers to a clock.	Use 'shock' when referring to a strong emotional response, often negative. It can be used in formal contexts, but be cautious with emotional topics. In informal settings, it's common to describe surprising events.

See it in real clips

I mean, it was like an alarm went off in my head, you know?

Where's the alarm guy?

I mean, it was like an alarm went off in my head, you know?

Where's the alarm guy?

Alarm

The Pitt › S1 E1

Yeah, we had to shock you.

Sherlock › S1 E1

and a shock to all who knew him.

Sherlock › S1 E1

I'm in shock - look, I've got a blanket.

The Pitt › S1 E1

Yeah, we had to shock you.

Sherlock › S1 E1

and a shock to all who knew him.

Shock

Frequently asked questions: Alarm vs Shock

What's the difference between Alarm and Shock?

Alarm: A loud noise to wake you up or warn you. Shock: A sudden feeling of surprise or fear.

Which is more advanced: Alarm and Shock?

Shock is the highest level, at B2, on the CEFR scale.

Are Alarm and Shock the same CEFR level?

Alarm: B1, Shock: B2 on the CEFR scale.

What part of speech are Alarm and Shock?

Alarm: noun, Shock: noun.

Can you show an example of each?

Alarm: I set my alarm for 6 AM to wake up early for my workout. Shock: The news of his sudden departure was a shock to everyone in the office.

Can I use Alarm and Shock interchangeably?

Not always. Alarm and Shock 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.