Principal
Definition 1 The amount borrowed, or the part of the amount borrowed which remains unpaid (excluding interest). here also called Principal amount. Definition 2 The part of a monthly payment that reduces the outstanding Balance of a Mortgage. Definition 3 The original investment. Definition 4 The entity on whose behalf an Agent acts. Definition 5 The role a broker/dealer plays when buying or selling securities for ITS own Account. Definition 6 An important company executive.