buckaroo vs buckeroo

buckaroo and buckeroo both are nouns.

Word	Noun	Adjective	Verb	Adverb
buckaroo	Yes	No	No	No
buckeroo	Yes	No	No	No

As nouns, buckaroo and buckeroo are synonyms defined as:

buckaroo and buckeroo: local names for a cowboy (`vaquero' is used especially in southwestern and central Texas and `buckaroo' is used especially in California)

Other synonyms of buckaroo include vaquero.

buckaroo (noun)	buckeroo (noun)
local names for a cowboy (`vaquero' is used especially in southwestern and central Texas and `buckaroo' is used especially in California)	local names for a cowboy (`vaquero' is used especially in southwestern and central Texas and `buckaroo' is used especially in California)