imprint vs sag

imprint and sag both are nouns.

Word	Noun	Adjective	Verb	Adverb
imprint	Yes	No	Yes	No
sag	Yes	No	Yes	No

As nouns, sag is a hyponym of imprint; that is, sag is a word with a more specific, narrower meaning than imprint:

imprint (noun)	sag (noun)
a device produced by pressure on a surface	a shape that sags
a distinctive influence
an impression produced by pressure or printing
an identification of a publisher; a publisher's name along with the date and address and edition that is printed at the bottom of the title page
a concavity in a surface produced by pressing

imprint (verb)	sag (verb)
mark or stamp with or as if with pressure	droop, sink, or settle from or as if from pressure or loss of tautness
establish or impress firmly in the mind	cause to sag