foghorn

noun 0.780

fog

noun 0.670

ground fog

noun 0.633

fogging

noun 0.629

fogger

noun 0.620

time signal

noun 0.612

signal

noun 0.596

signal fire

noun 0.579

ice fog

noun 0.578

radio beacon

noun 0.572

advection fog

noun 0.566

fogginess

noun 0.563

lighthouse

noun 0.555

traffic signal

noun 0.552

signaller

noun 0.551

signalling

noun 0.547

signaling

noun 0.546

defogger

noun 0.543

smoke machine

noun 0.535

beacon

noun 0.532

signalman

noun 0.529

fire alarm

noun 0.527

smoke alarm

noun 0.523

sound wave

noun 0.522

analog signal

noun 0.519

sonar

noun 0.516

klaxon

noun 0.515

signaler

noun 0.508

smog

noun 0.508

dog whistle

noun 0.505

semaphore

noun 0.503

sound

noun 0.501

echo sounder

noun 0.501

old fogey

noun 0.500