Substances, natural or man-made, which are intrinsically dangerous or otherwise pose a safety hazard. Examples include explosives, poisons, and corrosives.

(rail transport) A signal set at danger and showing a red light or other stop indication, which a train driver must not pass until it changes or until manually cleared past the signal by a dispatcher.

plural of danger signal

Alternative spelling of danger signal.

plural of danger space

plural of gap of danger

(usually with the definite article) a breach, place which is hard to defend; a danger, requiring bravery

possessing a weapon and likely to try to harm or kill someone by using it

Extra money paid to workers as compensation for dangerous work.

(Internet slang, humorous) A snake.