watercress Syllabification: (wa·ter·cress)Pronunciation: /ˈwôtərˌkres, ˈwä-/Translate watercress | into French | into German | into Italian | into Spanish Definition of watercress noun a cress that grows in running water and whose pungent leaves are used in salad. Nasturtium officinale, family Brassicaceae watercress in other Oxford dictionaries Definition of watercress in the British & World English dictionary