Idioms
An idiom is defined as - a group of words whose meaning is different from the meanings of the individual words.
Idiom:
put ideas into (someone's) head
Meaning:
to suggest something (often bad) to someone
Example:
My mother was angry because I was putting ideas into my sister's head.
List of common idioms, their meanings and examples of their usage in sentences
A group of words which have a different meaning when used together from the one they would have if you took the meaning of each word separately.