Up-looking arrow below a flat surface (a line)
Up-looking arrow over an open box (a hollow long rectangle with the top line removed)
Up-looking arrow inside a circle
Three generic symbols for uploading

In computer networks, to upload is to send data to a remote system such as a server or another client so that the remote system can store a copy.[1]

Remote upload

Transferring data from one remote system to another under the control of a local system is remote uploading.

Remote uploading is used by some online file hosting services. It is also used when the local computer has a slow connection to the remote systems, but they have a fast connection between them. Without remote uploading functionality, the data would have to first be downloaded to the local host and then uploaded to the remote file hosting server, both times over slow connections.

Other Languages
العربية: رفع (شبكات)
azərbaycanca: Upload
Bân-lâm-gú: Thoân-chiūⁿ
भोजपुरी: अपलोड
čeština: Upload
Deutsch: Upload
Esperanto: Alŝuto
فارسی: بارگذاری
한국어: 업로드
italiano: Upload
עברית: העלאה
latviešu: Augšupielāde
Nederlands: Uploaden
norsk: Opplasting
polski: Upload
کوردی: بارکردن
Türkçe: Yükleme
中文: 上傳