Answer: sirenes

AnswerCrossword Clue
SIRENES

Musical horns.

SIRENES

Air-raid warning devices.

SIRENES

Fog signal devices.

SIRENES
Fog signals.
SIRENES
Noise apparatuses.
SIRENESWhistles: Var.
SIRENESAcoustical instruments: Var.
SIRENESAlarms.
SIRENESSignal devices: Var.
SIRENESFoghorns, French style