Damaliscus lunatus vs sassaby

Damaliscus lunatus and sassaby both are nouns.

Word	Noun	Adjective	Verb	Adverb
Damaliscus lunatus	Yes	No	No	No
sassaby	Yes	No	No	No

As nouns, Damaliscus lunatus and sassaby are synonyms defined as:

Damaliscus lunatus and sassaby: a large South African antelope; considered the swiftest hoofed mammal

Other synonyms of Damaliscus lunatus include topi.

Damaliscus lunatus (noun)	sassaby (noun)
a large South African antelope; considered the swiftest hoofed mammal	a large South African antelope; considered the swiftest hoofed mammal