Thunder on android and ios has a keyword filter.

Like the other guy said, there is no keyword filter built into Lemmy itself, gotta use an app.

Here is a guide I once wrote on how to do that in the Eternity app for Lemmy on Android:

https://discuss.tchncs.de/post/6091026

I don’t think there is a way to do so through the website front-end. If you use Android, the Sync for Lemmy app has a keyword filter though, it’s amazing to filter out the whole politics spam.

I remember seeing a post on lemmy blocking posts with certain words on firefox (and its derivatives) with ublock origin.

1. Open My filters tab in ublock origin extension settings.
2. To block posts with word random on lemmy.ml, add this to text field lemmy.ml##div.post-listing:has(span:has-text("/random/i"))'. i after random/ matches case insensitively.

You made me look that up in my app since I have the exact same issue. Voyager has a function to do this exactly. You‘re welcome. :)

If you use a browser, sone extensions for parental control allow you to filter out words or replace them with other ines . Helped me a lot to clear my mind.

I feel ya. I personally only want English as I can’t understand other languages. Does Lemmy have that option and not an app/community by app/community way of doing it?

sync for Lemmy has a gag reflex

Another vote for Voyager which caters for blocking of keywords. And thanks to whoever posted the US politics block list. Can’t upvote as I can no longer see their post.

You can filter in Voyager the keywords you don’t want. In my eyes it’s better to block the users directly. There are some social warrior guys here posting their stuff more than once. They seem to be all over, but after all my blocking list is not more than 30 accounts. Not much. But the feed is clean.

Lemmy Connect for android has regex filters