Idioms
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.
Idiom:
seize an opportunity
Meaning:
to take advantage of an opportunity
Example:
I seized the opportunity to take the extra class when I heard about it.
List of common idioms, their meanings and examples of their usage in sentences
The language peculiar to a people or to a district, community, or class