fasten
B1neutral
Definition
Meaning
to close or attach something securely
to make something fixed, stable, or unable to move; to direct attention or focus onto something
Linguistics
Semantic Notes
Primarily a transitive verb. Often implies a deliberate action to make something secure. Can be used literally (physical attachment) or metaphorically (attention, gaze).
Dialectal Variation
British vs American Usage
Differences
Minimal. Both use 'fasten' for seatbelts, buttons, etc. 'Buckle up' is more common in US for seatbelts, but 'fasten your seatbelt' is standard in both.
Connotations
Slightly more formal in everyday US speech compared to synonyms like 'buckle', 'clip', or 'do up'.
Frequency
Slightly higher frequency in UK English, where 'do up' is also common for clothing.
Vocabulary
Collocations
Grammar
Valency Patterns
fasten somethingfasten something to somethingfasten something with somethingfasten on/upon something (metaphorical)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “fasten your seatbelt (idiomatic: prepare for something difficult/exciting)”
- “fasten on/upon (to focus attention on)”
Usage
Context Usage
Business
Used in safety instructions (e.g., 'All visitors must fasten their safety helmets').
Academic
Used in technical descriptions of mechanisms or biological processes (e.g., 'The enzyme fastens to the substrate').
Everyday
Common in instructions for clothing, seatbelts, bags, and packaging.
Technical
Used in engineering, aviation, sailing, and construction for securing components.
Examples
By Part of Speech
verb
British English
- Please fasten your seatbelt for take-off.
- She fastened the locket around her neck.
- The report fastened on the key issue of funding.
American English
- Fasten your helmet before riding.
- He fastened the documents together with a paperclip.
- Critics fastened on the mayor's earlier statement.
adverb
British English
- N/A (not standard as an adverb)
American English
- N/A (not standard as an adverb)
adjective
British English
- N/A (not standard as an adjective)
American English
- N/A (not standard as an adjective)
Examples
By CEFR Level
- Fasten your coat. It's cold.
- The baby can fasten the big buttons.
- You must fasten your seatbelt during the flight.
- He fastened the rope to the tree.
- The mechanism fastens the panel securely in place.
- Her eyes fastened on the mysterious package.
- The researcher's theory fastens upon a previously overlooked variable.
- Legally, the liability fastens on the manufacturer.
Learning
Memory Aids
Mnemonic
Think of making something FAST to something else. You FASTen it to make it stay FAST.
Conceptual Metaphor
SECURITY IS BEING FASTENED; ATTENTION IS SOMETHING THAT FASTENS (e.g., 'His gaze fastened on the stranger').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'быстрый' (fast/speedy). 'Fasten' is about securing, not speed.
- The Russian verb 'пристегнуть' is a close equivalent for seatbelts/clips, but 'fasten' has a wider range of attachment methods.
Common Mistakes
- Using 'fasten' intransitively without an object (Incorrect: 'The seatbelt fastens easily.' Correct: 'You can fasten the seatbelt easily.').
- Confusing 'fasten' (to attach) with 'hasten' (to hurry).
Practice
Quiz
In which sentence is 'fasten' used metaphorically?
FAQ
Frequently Asked Questions
No. While most common for physical attachment (seatbelts, buttons), it can be used metaphorically to mean 'focus intently on' (e.g., 'He fastened his attention on the problem').
'Fasten' is a general term for making something secure. 'Tie' usually involves using string or rope in a knot. 'Bind' implies tying tightly, often around something, and can have a more restrictive connotation.
Yes, 'unfasten' is the standard antonym meaning to open or detach something that was fastened (e.g., unfasten a seatbelt, unfasten a clasp).
No, these are unnatural. 'Fasten' typically collocates with items designed to be secured: clothing, restraints, connectors, lids, or things attached *to* something else. You 'turn on' a light and 'turn on' or 'start' a computer.