base line

B b

Definitions of base line words

noun base line a line serving as a base 3
noun base line any starting or reference point, figure, amount, level, etc. with which others can be measured or compared 3
noun base line a horizontal line measured with special accuracy to provide a base for survey by triangulation 3
noun base line the unmarked lane, six feet (1.8 m) wide, between any two consecutive bases: a base runner must normally stay within this lane 3
noun base line end line; esp., an area of the court just inside this line 3
noun base line the line at the back at either end of the court 3

before 1275

One of the 13% oldest English words

1275-1325; Middle English (noun) < Middle French < Latin basis basis; cf. prisoner's base

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 98% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

This diagram is provided by Google Ngram Viewer