From Longman Dictionary of Contemporary Englishauburnau‧burn /ˈɔːbən $ ˈɒːbərn/ adjective CCDCBauburn hair is a reddish brown colour —auburn noun [uncountable]
Examples from the Corpus
auburn• She wears a dark hat, its swath of auburn feather trailing down her back.• Beautiful auburn glitter at the bottom of the glass.• Larger and larger she loomed, with a strand of auburn hair come loose and flashing independently in the sunshine.• A lot of big, gorgeous intimidating auburn hair one found in magazines.• Next to him was a compact woman with straight auburn hair.• She ran her hand approvingly through her wavy auburn hair.Origin auburn (1400-1500) Old French auborne “blond”, from Medieval Latin alburnus “whitish”, from Latin albus “white”; probably influenced by brun, an early form of brown 