Both of them are types for stretching used for injury prevention and performance enhancement.
Static flexibility is the range of motion around joints where speed is not a factor. This type of stretching involves gradually easing into the stretch position and holding the position
Dynamic flexibility on the other hand is the range of motion during physical performance which involves speed, strength, power, neuromuscular coordination. This type of stercthing includes sport specific movements to prepare the body for movement.
Dynamic means active, energetic, or vigorous, so dynamic stretching involves movement – usually of more than one muscle group.Static means stationary, so static stretches isolate one muscle group at a time and hold a position rather than moving through a range of motion
