Idioms
An idiom is defined as - a group of words whose meaning is different from the meanings of the individual words.
Idiom:
sell (someone) on (something - a plan or idea)
Meaning:
to convince someone of something
Example:
I could not sell my friend on my idea that we buy a new computer together.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is a type of phrase or expression that has a meaning that can't be deciphered by defining the individual words.