A rotating cutting tool, used for cutting holes in rigid materials, that consists of an essentially conical point, relieved and fluted to form cutting lips, and spiral flutes which direct the chips...

A melody. / A song, or short musical composition. / (informal) The act of tuning or maintenance. / The state or condition of being correctly tuned. / (obsolete) Temper; frame of mind.

A surname.

plural of timebomb