Side Line

Part of speech: noun (n.)

1. A line pert. or attached to the side of a thing.

2. Specif., a line for hobbling an animal by connecting the fore and the hind feet of the same side.

3. A line of goods sold in addition to one's principal articles of trade; a course of business pursued aside from one's regular occupation.

4. A secondary road; esp., a byroad at right angles to a main road. [Canada]