underlay vs printing process

underlay and printing process both are nouns.

Word	Noun	Adjective	Verb	Adverb
underlay	Yes	No	Yes	No
printing process	Yes	No	No	No

underlay (noun)	printing process (noun)
a pad placed under a carpet	reproduction by applying ink to paper as for publication

underlay (verb)	printing process (verb)
provide with a base, support, lining, or backing
put (something) under or beneath
raise or support (the level of printing) by inserting a piece of paper or cardboard under the type