auburn /ˈɔ.bɚn/adjective 1noun 1forms 3 adjective1 •Of a reddish-brown colour.I never thought I'd meet a girl like you / Meet a girl like you / With auburn hair and tawny eyes — 1982 noun1 •A dark reddish-brown colour, often used to describe hair colour. formsauburns · more auburn · most auburn