Nouns

(n)quadruplet, quadone of four children born at the same time from the same pregnancy
(n)quadriceps, quadriceps femoris, musculus quadriceps femoris, quada muscle of the thigh that extends the leg
(n)quad, space(printing) a block of type without a raised letter; used for spacing between words or sentences
(n)quad, quadranglea rectangular area surrounded on all sides by buildings