back door
B2Neutral, with negative connotations in extended political/technical uses.
Definition
Meaning
A door at the rear or side of a building, typically used for service access.
A hidden, indirect, unofficial, or illicit method of entry, access, or achievement, often circumventing established rules or procedures.
Linguistics
Semantic Notes
The phrase can function as an open compound noun. The extended meaning often implies secrecy, illegitimacy, or vulnerability.
Dialectal Variation
British vs American Usage
Differences
No significant difference in core or extended meaning. Spelling: 'backdoor' as adjective/verb is solid/hyphenated variation in both.
Connotations
Identical connotations in both dialects.
Frequency
Extended meaning (computing/politics) is equally common in both.
Vocabulary
Collocations
Grammar
Valency Patterns
enter [somewhere] through the back doorgain access via a back doorcreate a back door [to/into something]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Get in through the back door.”
- “A back-door approach.”
Usage
Context Usage
Business
Refers to an unorthodox or secret deal, e.g., 'They got the contract through a back-door arrangement.'
Academic
Used metaphorically in political science or computing security discussions.
Everyday
Physical rear door; metaphor for sneaking in, e.g., 'He got into the club through the back door.'
Technical
Computing: A hidden vulnerability allowing unauthorized system access.
Examples
By Part of Speech
verb
British English
- They attempted to back-door the legislation into the spending bill.
American English
- The developer back-doored the software to allow future access.
adverb
British English
- Not commonly used as an adverb.
American English
- Not commonly used as an adverb.
adjective
British English
- It was a classic back-door recruitment scheme.
American English
- The committee uncovered a backdoor funding agreement.
Examples
By CEFR Level
- Please use the back door when you take the bins out.
- The cat always waits by the back door.
- The delivery driver came to the back door with the packages.
- He felt ill and left the party by the back door.
- The politician was accused of getting the law passed through the back door.
- Hackers exploited a back door in the old software.
- The treaty's ratification was a back-door manoeuvre to bypass parliamentary scrutiny.
- The encryption system was rendered useless by a deliberately planted back door.
Learning
Memory Aids
Mnemonic
Picture a house. The FRONT DOOR is for welcome, official guests. The BACK DOOR is for taking out the rubbish, sneaking in quietly, or letting the cat out.
Conceptual Metaphor
ACCESS IS A PATH; ILLEGITIMATE/SECRET IS BACK/HIDDEN.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating literally as 'задняя дверь' in computing/political contexts; use 'лазейка', 'чёрный ход', or 'бэкдор'.
- The adjective 'back-door' (as in 'back-door deal') should be translated conceptually as 'тайный', 'нелегальный'.
Common Mistakes
- Spelling as one word 'backdoor' when used as a noun in formal writing (acceptability varies).
- Using 'back door' for a positive, official alternative.
Practice
Quiz
What does 'back door' LEAST likely refer to in a computing context?
FAQ
Frequently Asked Questions
As a noun, it is traditionally written as two words ('back door'). As an adjective or verb, it is often hyphenated ('back-door deal') or written solid ('backdoor access'), with solid form increasingly common in computing.
Rarely. Its core meaning is neutral (a physical door). However, its extended metaphorical use almost always implies something unofficial, secretive, or illegitimate, giving it a negative connotation.
A 'loophole' is an ambiguity or omission in a rule that allows it to be circumvented *legally*. A 'back door' is a hidden or unofficial method of access, often implying intent to deceive or act illicitly.
Yes, very common. It's a standard term for a secondary entrance at the rear of a house, flat, or building, used in everyday contexts like deliveries, taking out rubbish, or informal entry.