Ni·ger /ˈnaɪdʒə, niːˈʒeə $ ˈnaɪdʒər/ 1. the Niger the third longest river in Africa, flowing through Mali, Niger, and Nigeria
2. a large country in West Africa, south of Algeria and north of Nigeria. Much of the land is desert. Population: 16,899,327 (2014). Capital: Niamey.
—Nigerien /niːˈʒeəriən $ -ˈʒer-/ noun, adjectiveadj