I. ˈlī-nər noun
Date: 15th century
1. : one that makes, draws, or uses lines
2.
a. : a ship belonging to a regular line
b. : an airplane belonging to an airline
3. : line drive
4. : something with which lines are made
II. noun
Date: 1611
1. : one that lines or is used to line or back something
2. : jacket 3c(2)
• lin·er·less -ləs adjective