Consisting of three parts or members, Three times as much in size, strength, number, or amount, Consisting of three united; multiplied by three; threefold, intransitive verb_ To make threefold, or thrice as much or as many; to treble, To make three times as great in number or amount, To be or become three times as great in number or amount, verb_ To multiply by three, noun_ informal A drink with three portions of alcohol, A triad of systoms of orthogonal surfaces, Something having three identifiable or prominent parts or members