a traffic light

switching on and off; flashing; blinking; flickering

to switch on and off; flash; blink; flicker

a loom / woven cloth

a signal / traffic lights

emergency vehicle lighting, flashing light, flashing beacon (emergency vehicle lighting)

a machine, a device; a contraption / a loom / an opportunity, a chance to do something; the right time or moment / something of great importance: the linchpin of the matter

indicates aircraft / indicates paper aeroplanes / indicates lives in video games

indicates machines / indicates airplanes

a trap or snare that works by beheading the bird or beast caught in it