"How to say [Video] in English?"
The term for "video" in English is "video". It is a simple noun that refers to a moving visual representation of sound or images. If you want to emphasize the fact that it is a recording or transmission of moving visuals and sound, you can use the term "video clip" or "video recording".
If you want to talk about the technology used to create or transmit video, you can use the term "video technology" or "video encoding". For example, if you are talking about the way a video is transmitted over the internet, you might say "This video is encoded in H.264, a widely used video compression format".
When talking about the specific parts of a video (e.g., the audio track, the video track, the editing), you would use specific terms such as "audio track", "video track", "editing", etc. For example, "The audio track in this video is in Dolby 5.1 surround sound" means that the video has an audio track that uses Dolby 5.1 surround sound technology.
In short, "video" is a straightforward term to use when referring to a recording or transmission of moving visuals and sound. More specific terms may be used depending on the context and level of detail you want to convey.