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a line on a sports field, such as the one in tennis, that marks the end of the playing area, or the one in baseball that marks the path along which players run: She delivered a final serve from the baseline to win the match. HadelProductions/iStock/Getty Images Plus/GettyImages. an imaginary line used as a starting point for making comparisons:
The meaning of BASELINE is a line serving as a basis; especially : one of known measure or position used (as in surveying or navigation) to calculate or locate something. How to use baseline in a sentence.
A baseline is an imaginary starting point or basis of comparison for something. To test how a class's performance improves over time, a researcher might begin with a baseline showing their current scores and grades.
baseline in British English. (ˈbeɪsˌlaɪn ) or base line (beɪs laɪn ) noun. 1. surveying. a measured line through a survey area from which triangulations are made. 2. an imaginary line, standard of value, etc, by which things are measured or compared. 3. a line at each end of a tennis court that marks the limit of play.
(in perspective drawing) a horizontal line in the immediate foreground formed by the intersection of the ground plane and the picture plane. a basic standard or level; guideline: to establish a baseline for future studies. a specific value or values that can serve as a comparison or control.
Definition of baseline noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
noun. surveying a measured line through a survey area from which triangulations are made. an imaginary line, standard of value, etc, by which things are measured or compared. a line at each end of a tennis court that marks the limit of play. Discover More. Word History and Origins. Origin of baseline 1. First recorded in 1740–50; base 1 + line 1.
1. (Surveying) surveying a measured line through a survey area from which triangulations are made. 2. an imaginary line, standard of value, etc, by which things are measured or compared. 3. (Tennis) a line at each end of a tennis court that marks the limit of play.
base•line (bās′ līn′), n. Also, base′ line′. [ Baseball.]the area between bases within which a base runner must keep when running from one base to another. [ Tennis.]the line at each end of a tennis court, parallel to the net, that marks the in-bounds limit of play.
BASELINE meaning: 1 : information that is used as a starting point by which to compare other information often used before another noun; 2 : a line at either end of the playing area in games like basketball and tennis.
