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English to English noun
| 1 |
a secret or underhand means of access (to a place or a position) |  | Example: he got his job through the back door
source: wordnet30
| 2 |
an undocumented way to get access to a computer system or the data it contains | | source: wordnet30
| 3 |
an entrance at the rear of a building | | source: wordnet30
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