Idioms
The language peculiar to a people or to a district, community, or class
Idiom:
buy (something) sight unseen
Meaning:
to buy something without seeing it first
Example:
My sister made a big mistake when she bought the used car sight unseen.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is defined as - a group of words in a fixed order that has a particular meaning that is different from the meanings of each word on its own.