Crack vs Fracture

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

Crack

Top 1,000 (very common)B2verb

Fracture

Top 2,000 (common)
Most common: Crack
 CrackFracture
Pronunciation🇬🇧 /["/kræk/","/kræks/","/krækt/","/ˈkrækɪŋ/"]/🇺🇸 /["/kræk/","/kræks/","/krækt/","/ˈkrækɪŋ/"]/🇬🇧 //ˈfræk.tʃər//🇺🇸 //ˈfræk.tʃɚ//
Meaningto break something into pieces or make a sound like a breakA break or crack in something hard.
ExampleHe tried to crack the safe but was unsuccessful.The athlete suffered a fracture in his leg during the game.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB2-
Part of speechverb
Collocationshard, crack under the pressure, crack under the strain, show signs of cracking, onhairline fracture, compound fracture, fracture site, fracture healing, fracture risk
Antonymsfix, repair, joinheal, mend, unite
Common mistakesUsing 'crack' with non-physical objects incorrectly, like 'crack a thought.', Confusing 'crack' with 'break' in certain contexts., Using 'cracked' instead of 'crack' for the present tense.Confused with 'fractured', the past tense form., Using 'fracture' as a verb when the noun form is required.
Usage notesUse 'crack' when referring to breaking physical objects or when discussing solving puzzles or codes. It's neutral and appropriate in most contexts, both formal and informal.Use 'fracture' when discussing broken bones or materials. It is more commonly used in medical or technical contexts.

See it in real clips

Fracture

Frequently asked questions: Crack vs Fracture

What's the difference between Crack and Fracture?

Crack: to break something into pieces or make a sound like a break Fracture: A break or crack in something hard.

Which is more common: Crack and Fracture?

Crack is the most common in everyday English.

Can you show an example of each?

Crack: He tried to crack the safe but was unsuccessful. Fracture: The athlete suffered a fracture in his leg during the game.

Can I use Crack and Fracture interchangeably?

Not always. Crack and Fracture 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.

Related comparisons