Bardsey noun1 •Ellipsis of Bardsey Island: an island off the Lleyn Peninsula, included in Aberdaron community, Gwynedd, Wales (OS grid ref SH1121).Y Gegin Fawr (The Big Kitchen) is a low, whitewashed building of stone, now used as a cafe, where medieval pilgrims rested before making the perilous crossing to the holy island of Bardsey. — 1980