(attributive) Denoting equipment and systems designed to give sufficient warning of an impending event.

(military) A warning, relatively far in advance, of a potential attack.

plural of strategic warning

(UK) An official edict that a particular substance or activity is dangerous, or an expression of such an edict.

(automotive) a triangle made of usually red reflective material, used to warn other road users of a broken-down vehicle

plural of warning triangle

Synonym of trigger warning

plural of warning shot

Used other than figuratively or idiomatically: A shot fired as a warning.. / (by extension, figuratively) An action intended to act as a warning.

(US law) A warning given by a law enforcement officer to criminal suspects in his custody advising them of certain constitutional rights, called their Miranda rights.