Top Definition
a particular kind of product or merchandise;

a particular kind of commercial enterprise;
Participation in tender is in our line of business.

May I know what line of business you handle?

If I may correct you, we don't handle this line of business, actually.

In my line of business you can't afford to carry large stocks of goods which may soon be out of date.
by qiaogz August 16, 2009

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