👉 Crumb is a term used in the field of linguistics to describe a type of syntactic structure that consists of a noun phrase attached to a prepositional phrase or clause. It can also refer to the act of creating a word by adding additional information, such as a conjunction, preposition, or hyphen. In simpler terms, a crumb is a small piece of a larger whole. For example, "The cat sat on the mat" would be an example of a crumb