Idioms
An idiom is a group of words, or in other words, a phrase that has a meaning other than its literal meaning of the words in it.
Idiom:
look like the cat that ate/swallowed the canary
Meaning:
to seem very self-satisified, to look like you have just had some kind of success
Example:
The boy looked like the cat that ate the canary when he won the race.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is a group of words, or in other words, a phrase that has a meaning different from the literal meaning of the words in it.