A score is twenty or approximately twenty.
Why is 20 referred to as a score?
score (n.) late Old English scoru “twenty,” from Old Norse skor “mark, notch, incision; a rift in rock,” also, in Icelandic, “twenty,” from Proto-Germanic *skur-, from PIE root *sker- (1) “to cut.” The connecting notion probably is counting large numbers (of sheep, etc.)
What is a score in math?
Dozen is a standard term used to equal the number twelve (12). Score is also a standard term, and it’s equal to twenty (20).