An expression in the usage of a language that is peculiar to itself either in having a meaning that cannot be derived from the conjoined meanings of its elements or in its grammatically atypical use of words.
Idiom:
zoom in on (someone or something)
Meaning:
to use a zoom lens to get a closer view of someone or something when taking a photograph
Example:
The cameraman zoomed in on the players on the field.
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.