Her political activism throws the apathy of others into sharp 'relief'. [=makes the apathy of others very noticeable]
His character provides a little 'comic relief' in what is otherwise a very serious and dramatic movie.
Just one day of sunshine would be a welcome 'relief' from the rainy weather we've been having lately.
(..) - No, no, don't blame me. - What was I supposed to do? I was on my first date with Elaine. You come barging in here, asking me to contribute money... ...to a volcano relief fund for Krakatoa. It was supposed to erupt. I find the whole thing embarrassing. Well, you know what (..)1991 TvShow: Seinfeld Title: The Truth Season: 3 Episode 2