all clear
zelfstandig naamwoord
1 all clear
A signal (usually a siren) that danger is over.
2 all clear
Permission to proceed because obstacles have been removed.
Moby betekeniswoordenboek: Klaxon, Mayday, SOS, above water, air-raid alarm, alarm, alarm bell, alarm clock, alarm signal, alarum, alert, all straight, beacon, blinking light, burglar alarm, buzzer, clear, crostarie, fiery cross, fire alarm ... meer laten zien.
Vind elders meer over all clear: etymologie - rijmwoorden - Wikipedia.
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