Main Entry:

¹side·line

Pronunciation:

\-ˌlīn\

Function:

noun

Date:

circa 1862

1: a line at right angles to a goal line or end line and marking a side of a court or field of play for athletic games2 a: a line of goods sold in addition to one's principal line b: a business or activity pursued in addition to one's regular occupation3 a: the space immediately outside the lines along either side of an athletic field or court b: a sphere of little or no participation or activity —usually used in plural