What is the meaning of Linier?

linesman (men), lineswoman (women), assistant referee

flax

linear:

1. having the form of a line; straight or roughly straight; following a direct course

   having the form of a line; straight or roughly straight; following a direct course

   of or relating to lines

   of or relating to a class of polynomial of the form ${\displaystyle y=ax+b}$

   ruler (instrument)

   linesman/lineswoman, assistant referee

   obsolete spelling of linjer

   Source: wiktionary.org