button
1. but.ton \'b*t-*n\ n [ME boton, fr. MF, fr. OF, fr. boter to thrust] often attrib 1: a small knob or disk secured to an article and used as a fastener by pas sing it through a buttonhole or loop 2: something that resembles a button : as 2a: any of various parts of a plant or of an animal 2b: a small globule of metal remaining after fusion 2c: a guard on the tip of a fencing foil slang 3a: the point of the chin pl 3b: WITS 2. but.ton \'b*t-*n\ \'b*t-nin, -*n-in\ \-n*r, -*n-*r\ vb or but.ton.ing 1: to furnish or decorate with buttons 2: to close or fasten with buttons : to have buttons for fastening - but.ton.er n
Webster's English Dictionary