No.
Upload means to transfer data from one device or server to another device or server.
For example, to put a photo of you on a Facebook profile, you need to upload it from your computer to Facebook's servers.
Upgrade means to improve the standard or quality of something. Such as software on a computer. If a newer version of a software is released, you should upgrade the older version to the newer version.
because it is stupid :( mine is doing the same thing
Yes they mean the same thing.
Yes they mean the same thing.
Yes, they can mean the same thing.
No, they are not the same thing. Mean and average are the same thing.
Shabby and different do not mean the same thing.
These two words can mean the same thing.
It can mean the same thing if you use it right:It's a solid source.It's a dependable source.They SOMETIMES can mean the same thing.
Yes, sanctuary and refuge mean the same thing.
Loyal and faithful mean essentially the same thing.
yes grain mean the same thing as particale
A trial version of software means that it is not free. You can use it for a time, but after a while they will ask you to pay to upgrade to the full version. The same thing happens with shareware software.