simple past tense and past participle of amber

amber-coloured

(idiomatic, Australia) Beer.

(US, Canada) A public notification of a child abduction.

plural of amber alert

(obsolete, organic chemistry) The organic compound succinic acid.

(UK, idiomatic) A driver of a road vehicle who accelerates when the traffic lights change from green to amber (instead of stopping, as required by law), gambling that no vehicle will cross his or her path; a driver who starts off when the traffic lights show red and amber together, but not yet green.

plural of amber light

(Britain) An amber-coloured traffic light indicating that vehicles should stop unless it is unsafe to do so, approximately equivalent to the yellow light in the US.

plural of amber gambler