dipsomaniac vs boozer

dipsomaniac and boozer both are nouns.

Word	Noun	Adjective	Verb	Adverb
dipsomaniac	Yes	No	No	No
boozer	Yes	No	No	No

As nouns, dipsomaniac and boozer are synonyms defined as:

dipsomaniac and boozer: a person who drinks alcohol to excess habitually

Other synonyms of dipsomaniac include alcoholic, alky, lush, soaker, souse.

dipsomaniac (noun)	boozer (noun)
a person who drinks alcohol to excess habitually	a person who drinks alcohol to excess habitually