springbok vs springbuck

springbok and springbuck both are nouns.

Word	Noun	Adjective	Verb	Adverb
springbok	Yes	No	No	No
springbuck	Yes	No	No	No

As nouns, springbok and springbuck are synonyms defined as:

springbok and springbuck: a South African gazelle noted for springing lightly into the air

Other synonyms of springbok include Antidorcas euchore, Antidorcas marsupialis.

springbok (noun)	springbuck (noun)
a South African gazelle noted for springing lightly into the air	a South African gazelle noted for springing lightly into the air