lute vs luting

lute and luting both are nouns.

Word	Noun	Adjective	Verb	Adverb
lute	Yes	No	No	No
luting	Yes	No	No	No

As nouns, lute and luting are synonyms defined as:

lute and luting: a substance for packing a joint or coating a porous surface to make it impervious to gas or liquid

lute (noun)	luting (noun)
chordophone consisting of a plucked instrument having a pear-shaped body, a usually bent neck, and a fretted fingerboard	a substance for packing a joint or coating a porous surface to make it impervious to gas or liquid
a substance for packing a joint or coating a porous surface to make it impervious to gas or liquid