liner

Etymology 1

line + -er (from the verb).

noun

1. Someone who fits a lining to something.
   a liner of shoes
   A good liner has a pretty shrewd idea of the value of the painting he is treating and usually charges accordingly. 1973, Kyril Bonfiglioli, Don't Point That Thing at Me, Penguin, published 2001, page 41
2. A removable cover or lining
   I threw out the trash can liner.
3. The pamphlet which is contained inside an album of music or movie
   Does it have the lyrics in the liner notes?
4. A lining within the cylinder of a steam engine, in which the piston works and between which and the outer shell of the cylinder a space is left to form a steam jacket.
5. A slab on which small pieces of marble, tile, etc., are fastened for grinding.
6. A formal no show sock.

Etymology 2

line + -er (from the noun).

noun

1. A large passenger-carrying ship, especially one on a regular route; an ocean liner.
   With her luxurious furnishings and spacious accommodation the Invicta, which is 350-ft. long and has a gross tonnage of 4,178, resembles a small liner. 1947 January and February, “Notes and News: New Southern Channel Steamer”, in Railway Magazine, page 49
   He turned back to the scene before him and the enormous new block of council dwellings. The design was some way after Corbusier but the block was built up on plinths and resembled an Atlantic liner swimming diagonally across the site. 1963, Margery Allingham, “Foreword”, in The China Governess
2. (nautical) A ship of the line.
3. (baseball) A line drive.
   The liner glanced off the pitcher's foot.
4. (marketing, slang) A basic salesperson.
5. (in combination) Something with a specified number of lines.
   the following three-liner by an unknown poet 2005, G. J. H. Van Gelder, Close Relationships, page 130
6. (South Korean idol fandom) person born in a certain year (XX liner); person who belongs to a certain line
   94 liner
7. Short for penny-a-liner.