The term DIK-DIK RELATIVE refers to four species of African ANTELOPE, namely ELAND (5 letters), Rhebok (6 letters), ANTELOPE (8 letters) and ORIBI (5 letters). All four species are members of the Bovidae family, which also includes goats, sheep, and cattle. They are all small antelopes, with the ELAND being the largest of the four, standing up to 1.6 meters tall. The Rhebok is the second largest, reaching heights of up to 1.2 meters. The ANTELOPE is the third largest, reaching heights of up to 1 meter, while the ORIBI is the smallest, reaching heights of up to 0.7 meters. All four species are found in Africa, with the ELAND and Rhebok being found in South Africa, the ANTELOPE in East Africa, and the ORIBI in West Africa.