Like films, Adobe Flash Professional documents divide lengths of time into frames. In the Timeline, you work with these frames to organize and control the content of your document. You place frames in the Timeline in the order you want the objects in the frames to appear in your finished content.
A keyframe is a frame where a new symbol instance appears in the Timeline. A keyframe can also be a frame that includes ActionScript® code to control some aspect of your document. You can also add a blank keyframe to the Timeline as a placeholder for symbols you plan to add later or to explicitly leave the frame blank.
A property keyframe is a frame in which you define a change to an object’s properties for an animation. Flash Professional can tween, or automatically fill in, the property values between the property keyframes in order to produce fluid animations. Because property keyframes let you produce animation without drawing each individual frame, they make creating animation easier. A series of frames containing tweened animation is called a motion tween.
A tweened frame is any frame that is part of a motion tween.
A static frame is any frame that is not part of a motion tween.
You arrange keyframes and property keyframes in the Timeline to control the sequence of events in your document and its animation.