drunken reveller vs drunken reveler

drunken reveller and drunken reveler both are nouns.

Word	Noun	Adjective	Verb	Adverb
drunken reveller	Yes	No	No	No
drunken reveler	Yes	No	No	No

As nouns, drunken reveller and drunken reveler are synonyms defined as:

drunken reveller and drunken reveler: someone who engages in drinking bouts

Other synonyms of drunken reveller include bacchanal, bacchant.

drunken reveller (noun)	drunken reveler (noun)
someone who engages in drinking bouts	someone who engages in drinking bouts