Idioms
An idiom is a type of phrase or expression that has a meaning that can't be deciphered by defining the individual words.
Idiom:
stumble across/upon (someone or something)
Meaning:
to find someone or something by accident or in an unplanned manner
Example:
I stumbled across a very nice restaurant last weekend. I stumbled across a good carpenter yesterday.
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