Cough vs Hack

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

Cough

Top 1,000 (very common)

Hack

Informal Top 1,000 (very common)

Most formal: Cough

	Cough	Hack
Pronunciation	🇬🇧 //kɒf// 🇺🇸 //kɔf//	🇬🇧 //hæk// 🇺🇸 //hæk//
Meaning	A sudden sound made when air comes out of the throat.	To break into a computer system or to modify something skillfully.
Example	She had to cough during the meeting because of the dust.	The security team worked to prevent anyone from trying to hack the database.
Register	Neutral	Informal
How common	Top 1,000 (very common)	Top 1,000 (very common)
Collocations	persistent cough, dry cough, cough syrup	hack into a computer, life hack, hack a game, hack someone's account, hack the system
Antonyms	silence, calm	secure, protect, defend
Common mistakes	Confused with 'cough up' meaning to expectorate., Using 'cough' in contexts where 'sneeze' should be used., Incorrectly spelling it as 'coff' or 'coughh'.	Confused with 'hacking' as only illegal activity., Using 'hack' as a noun without clarifying the context., Mixing up 'hack' with 'crack' regarding unauthorized access.
Usage notes	Used in medical contexts and everyday conversation. It's informal to discuss minor coughs and common cold symptoms.	Commonly used in tech contexts. Avoid using in formal writing. Can be used positively (creatively) or negatively (illegally).

See it in real clips

The Pitt › S1 E1

Fever and cough. From assisted living.

Cough

... where we broadcast our pirate signal and hack into the Matrix.

Hack

Frequently asked questions: Cough vs Hack

What's the difference between Cough and Hack?

Cough: A sudden sound made when air comes out of the throat. Hack: To break into a computer system or to modify something skillfully.

Which is more formal: Cough and Hack?

Cough is the most formal of these.

Can you show an example of each?

Cough: She had to cough during the meeting because of the dust. Hack: The security team worked to prevent anyone from trying to hack the database.

Can I use Cough and Hack interchangeably?

Not always. Cough and Hack 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.