lower vs glower

lower and glower both are nouns.

Word	Noun	Adjective	Verb	Adverb
lower	Yes	Yes	Yes	No
glower	Yes	No	Yes	No

As verbs, lower and glower are synonyms defined as:

lower and glower: look angry or sullen, wrinkle one's forehead, as if to signal disapproval

Other synonyms of lower include frown, lour.

lower (noun)	glower (noun)
the lower of two berths	an angry stare

lower (adjective)	glower (adjective)
the bottom one of two

lower (verb)	glower (verb)
make lower or quieter	look angry or sullen, wrinkle one's forehead, as if to signal disapproval
set lower	look at with a fixed gaze
cause to drop or sink
move something or somebody to a lower position
look angry or sullen, wrinkle one's forehead, as if to signal disapproval