What does the term 'VFR' stand for in aviation?

The term 'VFR' stands for Visual Flight Rules. This set of regulations governs the operation of aircraft in weather conditions generally clear enough to allow pilots to see where the aircraft is going. Under VFR, pilots are responsible for maintaining visual separation from other aircraft and obstacles, which emphasizes the importance of visual reference to the ground and horizon.

Visual Flight Rules provide a framework that allows pilots to navigate primarily by external reference, as opposed to relying solely on instruments. This is vital for safe operation, especially in good weather conditions, where pilots can benefit from visual cues. In contrast, other terms in the options provided, such as Variable Flight Regulation, Velocity Flight Range, and Verified Flight Record, do not accurately represent established aviation concepts related to pilot operations under visual meteorological conditions.