Upload is a term used in computer terms referring to the process of transferring a file from one device to another. For example, if you wanted to send a document from your computer to your phone, you would upload the document to the cloud, and then download it to your phone.
What is the difference between downloading and uploading?
There is a big difference between downloading and uploading. When you download something, you are getting it from another computer or server. When you upload something, you are sending it to another computer or server.