the use of a piece of electronic data that shows where someone or something is and that can, for example, be attached to a photograph or comment on social media

The phone includes GPS and automatic geotagging of photos. 这部手机上有GPS和照片自动地理标记功能。

Geotagging lets you assign geographic coordinates to photos. 地理标记功能让你可以为照片标注地理坐标。