Idioms
An idiom is defined as - a group of words whose meaning is different from the meanings of the individual words.
Idiom:
soil one's diapers
Meaning:
a baby fills his or her diapers
Example:
The baby soiled his diapers on the airplane trip.
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.