visual signal a signal that involves visual communication
star shell an artillery shell containing an illuminant
bengal light a steady bright blue light; formerly used as a signal but now a firework
flare -
a sudden burst of flame
flame,
flaming,
fire the act of firing weapons or artillery at an enemy; "hold your fire until you can see the whites of their eyes"; "they retreated in the face of withering enemy fire"
flare -
(baseball) a fly ball hit a short distance into the outfield
fly ball,
fly (baseball) a hit that flies up in the air
flare -
a device that produces a bright light for warning or illumination or identification
device any clever maneuver; "he would stoop to any device to win a point"; "it was a great sales gimmick"; "a cheap promotions gimmick for greedy businessmen"
flare -
a shape that spreads outward; "the skirt had a wide flare"