speak/talk the same language

if two people speak the same language, they have similar beliefs and opinions, and express themselves in similar ways.

There's no use setting up a meeting between the environmentalists and the construction company - they just don't speak the same language.

• not take kindly to something
• not take lying down
• not take no for an answer
• not take something lying down
• not the end of the world
• not the half of it
• not think twice about
• not think twice about something
• not to be sneezed at
• not to be sniffed at
• not to mention
• not to mention someone
• not to mention something
• not to put too fine a point on it
• not to speak of
• not to speak of something
• not touch something with a ten-foot pole
• not touch with a ten-foot pole
• not to worry
• not trust an inch
• not trust someone an inch
• not turn a hair
• not with a bang but with a whimper
• not worth the paper is printed on
• not worth the paper something is printed on