Yes, UFO.
It was in the mid '50s on a cold and clear winter night just before Christmas. So cold the snow went crunch walking on it.
Lived near an airbase so was familiar with airplanes, especially the new jets (Sabres and CF-100s).
This bright object low to the horizon flew fast across the sky. At first thought it was a jet airplane that had just taken off but no exhaust tail and NO sound. Disappeared behind a house and was gone.
Maybe a meteor but no 'flaming' tail and no sound, tho it could have been a long ways away.