Definitions
1.NounThe part of a day, event, or place (such as a city or district) used for business activities.
2.NounThe part of an object (chiefly a tool or weapon) that is physically used for its operation, rather than some other part such as the part by which it is held."staring down the business end of a [calibre of pistol here]; The business end of a hammer is known as the head."
3.NounThe part of an object (chiefly a tool or weapon) that is physically used for its operation, rather than some other part such as the part by which it is held."staring down the business end of a [calibre of pistol here]; The business end of a hammer is known as the head."
4.NounThe part of an activity, period of time, etc., which is most important and produces the significant result.