The term Junker (Russian: юнкер (yunker)) had several meanings in Imperial Russia. The Russian substantive Yunker is derived from the German noun Junker, where it means "young lord".
Yunker (ru: юнкер) was the rank for a volunteer at military service (ru: вольноопределяющийся, volnoopredelyayushchiycya, de: One-year volunteer) in the Imperial Russian Army in 19th and 20th centuries.