Idioms
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.
Idiom:
smack dab in the middle
Meaning:
right in the middle
Example:
There was a small hole smack dab in the middle of the plastic swimming pool.
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 other than its literal meaning of the words in it.