linen vs textile

linen and textile both are nouns.

Word	Noun	Adjective	Verb	Adverb
linen	Yes	No	No	No
textile	Yes	Yes	No	No

As nouns, textile is a hypernym of linen; that is, textile is a word with a broader meaning than linen:

linen: a fabric woven with fibers from the flax plant
textile: artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers

Other hypernyms of linen include cloth, fabric, material.

linen (noun)	textile (noun)
white goods or clothing made with linen cloth	artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
a fabric woven with fibers from the flax plant
a high-quality paper made of linen fibers or with a linen finish

linen (adjective)	textile (adjective)
	of or relating to fabrics or fabric making