baselines

noun

1. 1

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

   “A laser level generates a convenient baseline for interior work.”

2. 2

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

   “We used the last doctor visit to provide baselines for vital statistics.”

3. 3

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

   “Several characters typically have descenders below the lower baseline.”

4. 4

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

   “The umpire missed the call. The ball hit the baseline.”

5. 5

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

   “The baseline configuration includes unsupported components.”