Glossary

Clipping terms explained

The key terms you'll come across when making clips from long videos — explained briefly and without jargon.

Short
A short vertical video (9:16), like those on YouTube Shorts, Instagram Reels and TikTok. Usually a few seconds up to about a minute long.
Clip
A segment of a longer video. One long video can be cut into several clips that each work on their own.
Hook
A clip's opening — the first few seconds that decide whether someone keeps watching. A strong hook makes the point right away.
Vertical (9:16)
The vertical aspect ratio for phone screens. LucFlow crops clips to 9:16 so they fill the screen on Shorts, Reels and TikTok.
Captions
On-screen text that transcribes what's said — important because many clips are watched without sound. LucFlow generates captions from the video's audio.
Viral Score
An internal estimate of how well a moment works as a standalone clip. It helps sort the suggestions — it isn't a promise of reach.
B-roll
Extra footage laid over the main recording to make a clip more varied.
Split screen
A split image — for example facecam on top and gameplay below. That keeps both layers visible in vertical gaming clips.

More on how LucFlow turns your videos into Shorts: YouTube to Shorts.