1Video — recorded or broadcast moving images, or the footage itself.
今夜のニュースのビデオをもう一度見たい。
I want to watch tonight's news video again.
その会議のビデオをオンラインで公開する予定だ。
They plan to publish the video of that meeting online.
彼は面白いビデオを友達に送った。
He sent a funny video to his friend.
2Short for videotape (e.g., VHS); refers to the physical recording medium, now mostly spoken of nostalgically as an older technology.
子どもの頃のビデオに家族の映像が残っている。
There are family recordings on an old videotape from my childhood.
昔は映画をビデオで借りて観たものだ。
Back then, we used to rent movies on videotape and watch them.
3Short for a video cassette recorder (VCR) — the device used to record or play videotapes; now a largely obsolete piece of equipment.
祖父は古いビデオをまだ持っている。
My grandfather still has an old VCR.
4A short film or online video clip, used the way English 'video' is for short moving-image content.
学生が短いビデオを作ってプレゼンで使った。
A student made a short video and used it in a presentation.
YouTubeにアップしたビデオがすぐに拡散した。
The video uploaded to YouTube quickly went viral.