liner vs line drive

liner and line drive both are nouns.

Word	Noun	Adjective	Verb	Adverb
liner	Yes	No	No	No
line drive	Yes	No	No	No

As nouns, liner and line drive are synonyms defined as:

liner and line drive: (baseball) a hit that flies straight out from the batter

liner (noun)	line drive (noun)
(baseball) a hit that flies straight out from the batter	(baseball) a hit that flies straight out from the batter
a large commercial ship (especially one that carries passengers on a regular schedule)
a piece of cloth that is used as the inside surface of a garment
a protective covering that protects an inside surface