His diet was restricted to 'liquids'. = He was on a 'liquid diet'.
They offered us snacks and 'liquid refreshments'. [='drinks']
the 'liquid' grace of the dancer's movements
(..) when you're with your man and one thing leads to another. I do know what that's like. I really do. I'm not seeing anyone using liquid helium vortices like this. I'm not finding anything either. That's a good sign. Oh, wait, I found something. (..)2016 TvShow: The Big Bang Theory Title: The Positive Negative Reaction Season: 9 Episode 16