Handle

Handle could mean:

 Handle (grip), a device, attached to an object, that is held to move or use the object
 Handle (mathematics), a term used in topology
 Handle, the friction and flexibility of sheets of material as measured by Handle-o-Meter
 Handle, a pseudonym used in Citizens band radio
 Handle or username, a pseudonym used within an online system
 Adjustment handles let a user interface designer resize a control. 
 A handle is a 1.760001 liter (approx. half gallon) bottle of a distilled beverage because bottles of that size often have a handle
 Handle, the total amount bet at a place such as a horse racing track, dog racing track, or jai alai fronton
 A doorhandle.