Definitions
There are 3 meanings of the phrase
Back Door.
Back Door - as a noun
A secret or underhand means of access (to a place or a position)
Example: "He got his job through the back door"
Synonyms (Exact Relations)
backdoor17An undocumented way to get access to a computer system or the data it contains
Synonyms (Exact Relations)
backdoor17Example Sentences
"I entered the house through the back door."
"She always sneaks in and out through the back door."
"The back door was left open and a cat wandered inside."
"He knocked on the back door, but no one answered."
"The delivery person left the package at the back door."