Thank You All In Advance! - Tumblr Posts

Hey everyone, is it better to tag your posts with a 'trigger warning', a 'content warning', or both?

I was used to seeing sensitive content tagged with a trigger warning or tw; now I'm seeing it tagged as content warning or cw.

I normally tag it as "tw: *triggering thing*"; is that a good way?

Is there a difference between the two? Is one more useful for people who need to avoid sensitive content or triggers? Do they mean different things? Ty!