unbolt
LowTechnical/Literal, occasionally used figuratively in formal or literary contexts.
Definition
Meaning
To slide back the bolt of (a door, window, gate, etc.); to open by removing a bolt or bolts.
To make something accessible, unfastened, or released from a locked or secured state; figuratively, to remove an obstruction or to allow passage.
Linguistics
Semantic Notes
Primarily a verb of action with a specific instrument (a bolt). Implies a deliberate, physical act of opening. Rarely used intransitively.
Dialectal Variation
British vs American Usage
Differences
No significant difference in core meaning or frequency. Slightly more likely to be found in British historical or maintenance contexts.
Connotations
Neutral; suggests a mechanical or manual action. Can carry a slight literary or archaic tone.
Frequency
Equally uncommon in both dialects, largely supplanted by 'unlock' or 'open'.
Vocabulary
Collocations
Grammar
Valency Patterns
[Someone] unbolts [something][Something] is unboltedVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Unbolt the gates of opportunity.”
Usage
Context Usage
Business
Rare. 'The team worked to unbolt the old machinery from the factory floor.'
Academic
Rare, in historical or technical descriptions. 'The researcher had to unbolt the archive casing.'
Everyday
Very rare. Typically, 'unlock' or 'open' is used.
Technical
Most common context. Used in manuals, engineering, construction, or restoration. 'Unbolt the flange before removing the pump.'
Examples
By Part of Speech
verb
British English
- He unbolted the heavy oak door to the cellar.
- Before the inspection, they had to unbolt the safety cover.
- The gardener unbolted the gate at dawn.
American English
- She unbolted the shutters to let in the morning light.
- You'll need a wrench to unbolt that panel.
- The protocol requires us to unbolt the emergency exit from the inside.
Examples
By CEFR Level
- Please unbolt the door.
- The gate was unbolted.
- The technician unbolted the metal plate to access the wiring.
- Once the harbourmaster unbolted the chain, the boats could leave.
- The decision by the council effectively unbolted the way for new development.
- Ancient rites demanded the priest unbolt the sanctum doors only at the solstice.
Learning
Memory Aids
Mnemonic
Think of the opposite action: to BOLT a door is to lock it; to UNBOLT is to undo that lock.
Conceptual Metaphor
REMOVING A BARRIER / GAINING ACCESS (e.g., 'The new evidence unbolted the mystery.')
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Не путать с 'разболтить' (to unscrew). 'Unbolt' означает отодвинуть засов, а не открутить болт. Для 'открутить болт' используется 'unscrew a bolt'.
Common Mistakes
- Using 'unbolt' to mean 'unscrew'.
- Using it intransitively (e.g., 'The door unbolted' is passive, not active).
Practice
Quiz
In which context is the verb 'unbolt' most appropriately used?
FAQ
Frequently Asked Questions
'Unbolt' specifically refers to moving a bolt (a sliding metal bar). 'Unlock' is more general and can involve keys, codes, or other mechanisms. A door might be both locked and bolted, requiring two separate actions.
Yes, but it's rare and literary. It can mean to remove an obstacle or restriction, e.g., 'The treaty unbolted trade between the nations.'
No, it is a low-frequency word. In everyday speech, people usually say 'unlock', 'open', or 'unfasten'. Its primary use is in specific technical or descriptive contexts.
There is no direct, commonly used noun form. The related noun is 'bolt' (the object you move). The action itself would be 'the unbolting' (gerund), e.g., 'The unbolting of the hatch took several minutes.'