O·ka 
(ō-kä)
(ō-kä) A river, about 1,500 km (930 mi) long, of western Russia flowing north, east, and northeast to join the Volga River near Nizhny Novgorod.
- Andries Wilhelmus Jacobus
- andro
- andro-
- androcentric
- androcentrism
- androcentrist
- Androcles
- Androclus
- androecial
- androecium
- androgen
- androgenesis
- androgenetic
- androgenetic alopecia
- androgenic
- androgenic hormone
- androgenization
- androgenize
- androgyne
- androgynous
- androgynously
- androgyny
- android
- Andromache
- andromeda