Short Definition: An orbit is a periodical, elliptical trajectory that all objects floating in space follow.
Detailed Definition: An orbit is the path that objects in space follow in a two-or-more-body system. Everybody in such system revolves around a common center of mass. Usually, when talking about orbits, we think of two-body systems with one body much bigger than another. It appears like the smaller body is revolving around the larger one, but in fact both are revolving around a common center of mass.
Etymology: from Latin “orbita” meaning path.
Sample Sentence(s): A new satellite was put in orbit.
Translations:
French: Orbite
German: Umlaufbahn
Polish: Orbita
Swedish: Bana
Links to Videos/Articles: https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-orbit-58.html