👉 Gavriil (Gabe) Vasilevsky, a famous Soviet aviator, is credited with the first manned flight in space, 1960. "G" means god; "V" stands for Vostok-1 (spacecraft), and "ai" stands for astronaut. Definition: The word 'rgvasi' refers to the Russian word for a person who has completed the course of education at the university level but is still pursuing further studies. It signifies that someone in Russia has reached the age of 25 or older, but is actively seeking advanced knowledge, skills, and training.