fail open
Of an access control system: to automatically let all traffic through in the case of a…Of an access control system: to automatically let all traffic through in the case of a failure. For example, an emergency door unlocking in the event of a power outage.
» Oleg failed to open the door.
Amastan · Tatoeba · CC BY 2.0 FRMeaning
1 sensesOf an access control system: to automatically let all traffic through in the case of a failure. For example, an emergency door unlocking in the event of a power outage.
Coordinate term: fail closed
Examples
2 sentencesOleg failed to open the door.
Tom's parachute failed to open.
Forms
fails open, failing open, failed open, failed open| Base form | fail open · to fail open |
|---|---|
| 3rd person singular | fails open |
| Present participle | failing open |
| Past simple | failed open |
| Past participle | failed open |
irregular
Lessons for this word
3 lessons- A1Present simple — Because it is a verb
- A1Past simple, regular verbs — Because of its past form
- A2Present perfect: introduction — Because of its past participle
See also
neighbours in the dictionaryDictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.