Definition of "amber"

noun:
- A brownish yellow colour.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
- The intermediate light in a set of three traffic lights, the illumination of which indicates that drivers should stop short of the intersection if it is safe to do so.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
- The stop codon (nucleotide triplet) "UAG", or a mutant which has this stop codon at a premature place in its DNA sequence.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
adjective:
- Of a brownish yellow colour, like that of most amber.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
verb:
- To perfume or flavour with ambergris.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
- To preserve in amber.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License