Back door

/bˈak dˈɔː/

/bˈæk dˈoːɹ/

Back door

a door that is located behind or at the side of a building

a secret or underhand means of access (to a place or a position)

synonyms : backdoor

an undocumented way to get access to a computer system or the data it contains

synonyms : backdoor

Examples

1. The thieves had a go at the front door, then chiselled their way in through the back door.

2. The back door has a five pin tumbler system, single circuit alarm, child's play.

3. Back door was locked.

4. Check this back door!