fail safe

See also: fail-safe, and failsafe

English

Verb

fail safe (third-person singular simple present fails safe, present participle failing safe, simple past and past participle failed safe)

1. (intransitive) Alternative form of fail-safe (verb with differing inflections)
   • 2021 November 17, Christian Wolmar, “Misleading statements lead to ill-informed speculation”, in RAIL, number 944, page 44:

     Anyone with the remotest knowledge of railway signalling knows that it always fails safe.