cufflink(button used to hold a sleeve cuff together) noun [UK: ˈkʌ.flɪŋk] [US: ˈkʌ.flɪŋk]
twin [twins](either of two people who shared the same uterus, or of two similar or closely related objects) noun [UK: twɪn] [US: ˈtwɪn]He's a twin. = È un gemello.