Idioms
Idioms are phrases which cannot be understood simply by looking at the meaning of the individual words in the phrase.
Idiom:
open and aboveboard
Meaning:
to be honest, to be visible to the public
Example:
The company is open and aboveboard and they run their business very honestly.
List of common idioms, their meanings and examples of their usage in sentences
The language peculiar to a people or to a district, community, or class