cairnPronunciation: /kɛːn/Translate cairn | into Italian Definition of cairn noun 1a mound of rough stones built as a memorial or landmark, typically on a hilltop or skyline. a prehistoric burial mound made of stones: a chambered cairn 2 (also cairn terrier) a small terrier of a breed with short legs, a longish body, and a shaggy coat. [perhaps so named from being used to hunt among cairns]Origin: late Middle English: from Scottish Gaelic carncairn in other Oxford dictionaries Definition of cairn in the US English dictionary