DEFINITION of 'Commission'. A service charge assessed by a broker or investment advisor in return for providing investment advice and/or handling the purchase or sale of a security.Most major, full-service brokerages derive most of their profits from charging commissions on client transactions.n the other hand, full-service brokerages offer a more personalized service, but commissions are much higher. However, when commission is charged there is the potential for a conflict of interest to develop between brokerages and their clients.
2. the mouth, or end for discharge, of the barrel of a gun, pistol, etc. 3. a device, usu. an arrangement of straps or wires, placed over an animal's mouth to prevent the animal from biting, eating, etc. 4. to put a muzzle on (an animal or its mouth). 5. to restrain from speech, the expression of opinion, etc.
trigger - lever that activates the firing mechanism of a gun. gun trigger. gun - a weapon that discharges a missile at high velocity (especially from a metal tube or barrel) hair trigger - a gun trigger that responds with little pressure. lever - a rigid bar pivoted about a fulcrum. 2. trigger - a device that activates or releases or causes something to happen device - an instrumentality invented for a particular purpose; the device is small enough to wear on your wrist; a device intended to conserve water