Cling vs Fasten

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

Cling

Top 2,000 (common)C1verb

Fasten

Top 3,000 (common)B1verb
Most common: Cling
 ClingFasten
Pronunciation🇬🇧 /["/klɪŋ/","/klɪŋz/","/klʌŋ/","/ˈklɪŋɪŋ/"]/🇺🇸 /["/klɪŋ/","/klɪŋz/","/klʌŋ/","/ˈklɪŋɪŋ/"]/🇬🇧 /["/ˈfɑːsn/","/ˈfɑːsnz/","/ˈfɑːsnd/","/ˈfɑːsnɪŋ/"]/🇺🇸 /["/ˈfæsn/","/ˈfæsnz/","/ˈfæsnd/","/ˈfæsnɪŋ/"]/
MeaningTo hold on tightly to somethingTo make something secure or tight.
ExampleThe child began to cling to her mother's leg, feeling shy in the new environment.Please fasten your seatbelt before the flight.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 3,000 (common)
CEFR levelC1B1
Part of speechverbverb
Collocationsclosely, firmly, tightly, onto, to, close, closely, tofirmly, properly, securely, to, firmly, properly, securely, to, firmly, properly, securely, to, firmly, properly, securely, to
Antonymsrelease, let go, detachloosen, unfasten
Common mistakesConfused with 'clingy' which describes someone dependent, Incorrectly using 'cling' without an object (e.g., 'I cling'), Using 'cling' in passive form incorrectlyConfusing 'fasten' with 'loosen'., Using 'fasten' without an object, e.g., saying 'I need to fasten.' instead of 'I need to fasten my seatbelt.', Mixing up 'fasten' with other similar verbs like 'attach' or 'secure'.
Usage notesUsed in various contexts, like physical grip or emotional attachment. Avoid when describing a detached state or lack of concern. More common in physical contexts than emotional.Use 'fasten' when you want to describe securing something, like a seatbelt or a button. It's appropriate in most contexts.

Frequently asked questions: Cling vs Fasten

What's the difference between Cling and Fasten?

Cling: To hold on tightly to something Fasten: To make something secure or tight.

Which is more common: Cling and Fasten?

Cling is the most common in everyday English.

Which is more advanced: Cling and Fasten?

Cling is the highest level, at C1, on the CEFR scale.

Are Cling and Fasten the same CEFR level?

Cling: C1, Fasten: B1 on the CEFR scale.

What part of speech are Cling and Fasten?

Cling: verb, Fasten: verb.

Can you show an example of each?

Cling: The child began to cling to her mother's leg, feeling shy in the new environment. Fasten: Please fasten your seatbelt before the flight.

Can I use Cling and Fasten interchangeably?

Not always. Cling and Fasten 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.

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