Buckeyes is a term that is usually associated with football and Ohio State University. But did you know that there are other words that can be used as synonyms for buckeyes? One synonym is chestnuts, which are similar in appearance to buckeyes. Another synonym is conkers, which is a term used in the United Kingdom for a similar game that is played with horse chestnuts. Horse chestnuts can also be used as a synonym for buckeyes in some instances. Finally, buckeyes can also be referred to as buckeye nuts, which is perhaps the most common synonym used for this term.