Guernsey UK /ˈɡɜːnzi/US /ˈɡɝnzi/ noun7 •An island, the second-largest of the Channel Islands. •The Bailiwick of Guernsey, a British crown dependency on the island of Guernsey. •A breed of dairy cattle originally bred on Guernsey; any individual of this breed. •A knitted fisherman’s sweater of a type made on the island. •A long-sleeved shirt worn by sportsmen, especially in rugby codes (historically). •(Australia) A team-liveried shirt; a jersey. •(Australia) Selection or election to a position. formsGuernseys