The capital city of Bulgaria.

A female given name from Ancient Greek / A river, and surrounding region of Madagascar

(space science, telescope, NASA) Acronym of Stratospheric Observatory for Infrared Astronomy. (a telescope atop a Boeing 747SP aircraft with an effective diameter of 2.5 meters at altitudes up to 13.7 kilometers)

Of, from, or pertaining to, Sofia

Someone from Sofia.

plural of Sofian