What is the meaning of Baseline?

A line that is a base for measurement or for construction.

A datum used as the basis for calculation or for comparison.

A line used as the basis for the alignment of glyphs.

The line at the farthest ends of the court indicating the boundary of the area of play.

A configuration of software, hardware, or a process that is established and documented as a point of reference.

To provide a baseline for measurement.

To play from the baseline.

Source: wiktionary.org