Is it possible to subscribe to or follow a particular keyword?

One of my coworkers has a few keywords he'd like to get notifications for if someone uses them - e.g. Ansible. Is there any way to subscribe to or follow a keyword's usage in the community?

I know I can save a filter for this, but there are no notifications for it. It seems possible to do this with a Google Alert (untested), but native support would be preferred.

Thanks!