One of these speed limits moves every time the aircraft burns fuel or drops a passenger. The other never moves at all — and mixing up which is which is one of the more dangerous misunderstandings in general aviation.
VA (design maneuvering speed) and VNE (never-exceed speed) both appear as limits on the airspeed indicator, and both are commonly lumped together as "don't fly faster than this." But they protect the airframe from completely different threats, they behave completely differently as the flight progresses, and only one of them is a fixed number. Confusing the two — especially assuming VA is a flat "safe maneuvering speed" the way VNE is a flat structural red line — has contributed to real in-flight structural failures.