(a) Flat, level, even; of geographic areas: low in elevation, lowland; broad, flat; also, of an engraving: worked in low relief; plain contre (ground, place, thing), a plain, plateau, or lowland……
(a) Threefold; composed of three like elements or parts; also, having three aspects, tripartite; (b) multiplied or increased thrice; of actions: performed three times; (c) treble in philosophie……
