A _______ in Premiere indicates a change in audio, video, or an effect within a clip.

A keyframe in Premiere is used to signify a specific point where a change occurs in audio, video, or effects within a clip. This allows for precise control over how attributes like position, scale, or opacity evolve over time. By placing keyframes at different points on the timeline, users can create dynamic changes that would otherwise not be possible with static values. For example, if you want to animate the volume of a sound or the abruptness of a visual effect, keyframes are essential as they delineate the start and end points of the change you want to implement.

Markers, on the other hand, are utilized to annotate specific points within a timeline and do not inherently create or indicate changes. Transitions are the methods used to smoothly switch from one clip to another, while a clip is merely the media entity itself, containing the audio or visual content. Keyframes specifically establish the parameters for transformation, making them fundamental to dynamic editing in Adobe Premiere.