A city in Rajasthan, India, also known as Amer.

A river in Derbyshire, England, which joins the River Derwent at Ambergate.

A hard, generally yellow to brown translucent or transparent fossil resin from extinct coniferous trees of the pine genus, used for jewellery, decoration and later dissolved as a binder in varnishes. One variety, blue amber, appears blue rather than yellow under direct sunlight.

A yellow-orange colour.

(Britain) The intermediate light in a set of three traffic lights, which when illuminated indicates that drivers should stop short of the intersection when safe to do so.

(biology, genetics, biochemistry) The stop codon (nucleotide triplet) "UAG", or a mutant which has this stop codon at a premature place in its DNA sequence.

(uncountable) Hesitance to proceed, or limited approval to proceed; an amber light.

(transitive, rare) To perfume or flavour with ambergris.

(transitive, rare) To preserve in amber.

(transitive, rare, chiefly poetic or literary) To cause to take on the yellow colour of amber.

(intransitive, rare, chiefly poetic or literary) To take on the yellow colour of amber.

Of a brownish yellow colour, like that of most amber.