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Onion skinning is a 2D computer graphics term for a technique used in creating animated cartoons and editing movies to see several frames at once. This way, the animator or editor can make decisions on how to create or change an image based on the previous image in the sequence.

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A keyframe in animation and filmmaking is a drawing that defines the starting and ending points of any smooth transition.The drawings are called "frames" because their position in time is measured in frames on a strip of film.

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The timeline is one of the most important toolbars in Flash. On a timeline you have frames and key frames.

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Post-production is the final stage in the process of creating an animation and involves exporting or rendering out the animation frames and then editing the pieces of animation together using video editing software.

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Selecting Strokes with the Selection Tool. There are several ways to select objects in Flash. You can select an object's stroke or fill or both. You can use the Selection tool to select parts of the object or drag over a portion of it to create a selection rectangle.

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These spans and frames can be moved within the same layer, or to most other layers. A tween layer cannot contain IK spans or classic tweens. Although tween spans cannot contain Action Script.

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Short for in-betweening, the process of generating intermediate frames between two images to give the appearance that the first image evolves smoothly into the second image.