GARBOARD Meaning of GARBOARD in English (also ~ strake ) ■ noun the first range of planks or plates laid on a ship's bottom next to the keel.OriginC17: from Du. gaarboord , perh. from garen 'gather' + boord 'board'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004