(a) A key; lok and keie; also fig.; kinges keies, crowbars and hammers used to force locks or doors; (b) a representation of a key in a heraldic device; keie of rome, a key as a sign of Roman……

(a) Insusceptibility to differentiation, indivisibility, lack of diversity; also, purity, freedom from adulteration (b) theol. the essential unity among the persons of the Trinity; the oneness or……