buckeye vs horse chestnut

buckeye and horse chestnut both are nouns.

Word	Noun	Adjective	Verb	Adverb
buckeye	Yes	No	No	No
horse chestnut	Yes	No	No	No

As nouns, buckeye and horse chestnut are synonyms defined as:

buckeye and horse chestnut: tree having palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds

Other synonyms of buckeye include Aesculus hippocastanum.

As nouns, buckeye and horse chestnut are synonyms defined as:

buckeye and horse chestnut: the inedible nutlike seed of the horse chestnut

Other synonyms of buckeye include conker.

buckeye (noun)	horse chestnut (noun)
tree having palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds	tree having palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds
the inedible nutlike seed of the horse chestnut	the inedible nutlike seed of the horse chestnut