The Collaborative International Dictionary of English v.0.48:Auld \Auld\, a. [See Old.] Old; as, Auld Reekie (old smoky), i. e., Edinburgh. [Scot. & Prov. Eng.] [1913 Webster] WordNet (r) 3.0 (2006):auld adj 1: a Scottish word; "auld lang syne"