A family of East African languages spoken by Nilotic peoples from the Sahara south to Kenya and Tanzania WordNet 3.0 & Open English WordNet

The Nilo-Saharan languages are a proposed family of African languages spoken by somewhere around 70 million speakers, mainly in the upper parts of the Chari and Nile rivers, including historic Nubia, north of where the two tributaries of the Nile meet. Wikipedia

A family of African languages spoken in the northern half of Africa. OmegaWiki

A theoretical major language family spoken mostly along the Nile river and in large parts of the Sahara. Wiktionary