When trying to export a not certified certificate or upload it to a server you get a warning (in case you forgot to certify it).
In both casing the wording uses "export" in the text and the window title.

https://dev.gnupg.org/T7495#209088

We should agree on a wording we want to use consistently in the workflow of keyserver and ldap uploads.
There is also a case of an error message "Exporting the certificate to a key server is not possible".