Both cameras, in real time
Your video reaches the other person as it happens, and theirs reaches you the same way. Neither side is watching something that was filmed earlier.
Live
One is a room you watch: someone streams, anyone can drop in. The other is a 1v1 — two cameras running at the same time, pointed at each other. Both are genuinely live. Only one of them answers you, and that is the one this site is built around.
Live, the 1v1 kind
Your video reaches the other person as it happens, and theirs reaches you the same way. Neither side is watching something that was filmed earlier.
There is no session sitting somewhere waiting for you. It is created when two people are matched and it stops existing when either one leaves.
Live means the other person can answer you — the reason to be in the session at all is that what you do changes what happens next.
Live, the other kind
The app lobby has a Live tab: someone streams from their own room and anyone who drops in can watch. That is live too — it is just pointed at an audience instead of at you.
In a room your camera stays off and the chat you type is visible to everyone else watching. Nobody in there is having a conversation with you specifically.
Scrolling short videos is the third thing that borrows the word, and it is the one that is not live at all — those were filmed earlier, and nobody on the other end knows you are there.
Why this matters
Most people who search for something live want one of two things, and the word does not tell you which. Either you want to watch someone — in which case a room works fine and your camera stays off — or you want a person who can respond to you, by name, in the next second.
That second one is the whole reason this site is built around a single two-person session rather than a feed or a room. Watching can be endless and still leave you talking to nobody. One live conversation cannot.
It means the video is happening in real time in both directions: the person you are matched with sees you as you move and speak, and you see them the same way. Nothing in the session is a recording.
The same session from a different angle.
A room can be watched. A 1v1 talks back.