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
(..) - Yes? - Yes, what's your initial premise? That Gluant did not want to be killed. Everything else follows like liquid mercury... ...flowing down a... A... A sloping thing. How long do you think it will take to find the killer? Right now the killer is being (..)2006 The Pink Panther