quadruple quadruplicate quadruplex fourfold four-fold
quadruple%5:00:02:multiple:00 quadruplicate%5:00:00:multiple:00 quadruplex%5:00:00:multiple:00 fourfold%5:00:00:multiple:00 four-fold%5:00:00:multiple:00
četveren štirikraten
having four units or components
quadruple rhythm has four beats per measure quadruplex wire