"upload" means to transfer or send files from your computer or device to another location, such as a website or server, typically over the internet. Full definition
The next thing to do is create and flesh out your profile by uploading photos of yourself and even video messages for other members to watch. (straight.sex-dating-reviews.com)
This is a playlist of videos uploaded by library patrons, most made by teens, who have caught other patrons viewing pornography at their local libraries. (endsexualexploitation.org)
The free account allows photo upload of up to 12 photos. (datesites.com)