man lock
Very LowTechnical / Historical
Definition
Meaning
A specialised chamber used to control pressure and permit passage between areas of differing pressure or atmosphere, primarily for workers.
A device or structure designed to safely transfer personnel between environments with significant atmospheric pressure differences, most commonly used in mining, tunnelling, and deep-sea diving. In modern contexts, can also metaphorically describe a rigid, traditional masculine role.
Linguistics
Semantic Notes
Mostly encountered in historical texts about mining or modern texts about specialised engineering (e.g., tunnel boring machines, hyperbaric work). Not a general-use compound like 'deadlock'.
Dialectal Variation
British vs American Usage
Differences
Terminology is identical. Usage confined to technical fields in both dialects.
Connotations
Neutral technical term. No significant dialectal connotation difference.
Frequency
Extremely rare in general discourse in both regions. Slightly more likely in UK due to historical mining literature.
Vocabulary
Collocations
Grammar
Valency Patterns
The [workers] [entered/exited] the man lock.A [pressure] man lock was installed.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None specific to this term.”
Usage
Context Usage
Business
Virtually never used.
Academic
Used in historical or engineering papers on tunnelling, mining, or hyperbaric medicine.
Everyday
Extremely unlikely. Would require explanation.
Technical
Primary domain. Refers to a specific safety apparatus in pressure differential engineering.
Examples
By Part of Speech
verb
British English
- Not used as a verb.
American English
- Not used as a verb.
adverb
British English
- Not used as an adverb.
American English
- Not used as an adverb.
adjective
British English
- The man-lock mechanism requires regular inspection. (hyphenated attributive use)
American English
- The man lock chamber was pressurized. (noun adjunct use)
Examples
By CEFR Level
- (Too rare for A2. Use 'lock' instead.)
- The tunnel workers used a special door called a man lock.
- Before entering the pressurised section of the caisson, the divers had to wait in the man lock.
- The Victorian mining report detailed several fatalities related to the improper use of the man lock during decompression.
Learning
Memory Aids
Mnemonic
Imagine a MINER needing to pass through a special LOCKed door (a MAN LOCK) to enter the pressurised part of the mine.
Conceptual Metaphor
TRANSITION IS PASSING THROUGH A LOCK (from one state/atmosphere to another).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate as 'мужчина замок' (literal 'man lock').
- The Russian equivalent technical term is 'шлюз' or 'шлюзовая камера'.
Common Mistakes
- Confusing it with 'manhole' or 'deadlock'.
- Using it as a general term for any lock.
- Capitalising it unnecessarily.
Practice
Quiz
In which context are you most likely to encounter the term 'man lock'?
FAQ
Frequently Asked Questions
No, it is a very rare and specialised technical term, mostly of historical interest.
Historically, it used 'man' in the generic sense of 'human' or 'worker'. In modern technical contexts, gender-neutral terms like 'personnel lock' may be preferred.
An 'air lock' is a general term for any chamber that controls pressure between spaces. A 'man lock' is specifically an air lock designed for the passage of personnel, as opposed to materials ('materials lock').
It would be highly unusual and confusing unless you were specifically discussing historical mining, tunnelling, or hyperbaric engineering.