1 noun NAUT boatáirc fem2 c m u2 noun old-fashioned thingseanrud ón díleshe has an ark of a cartá a carr chomh sean leis an gceo, carr den seandéanamh atá aici, seantrach ón díle an carr atá aici3 noun (figurative) holy grailthis cure is the lost ark of medical researchis é an leigheas seo buaicphointe an taighde leighis