Guernsey2Pronunciation: /ˈgəːnzi/Translate Guernsey | into French | into Italian | into Spanish Definition of Guernsey noun (plural Guernseys) 1an animal of a breed of dairy cattle from Guernsey, noted for producing rich, creamy milk. 2 (guernsey) a thick sweater made with oiled navy-blue wool and originally worn by fishermen. Australian a football jumper, especially one of the sleeveless kind worn by Australian Rules players. Phrases get (or be given) a guernsey Australian informal be selected for a football team. gain recognition or approval. Guernsey in other Oxford dictionaries Definition of Guernsey in the US English dictionary