This is the 6616th most frequent Russian word.
jpg
"JPG" is not a Russian word; it refers to a widely used image file format (JPEG).
Here, 'jpg' refers to a file extension for an image that the computer is having trouble accessing.
Компьютер не может открыть файл jpg.
The computer cannot open the jpg file.
In this context, 'jpg' designates the format that is being considered for this particular image.
Эта картинка слишком маленькая, чтобы сохранять её как jpg.
This image is too small to save as a jpg.
In this sentence, 'jpg' is used to specify the file format of the saved photo.