A verb combined with an adverb or a preposition, or sometimes both, to give a new meaning.
build someone into something and build someone in
to a make a person an integral part of an organization or a plan.
The mayor built his cronies into the organizational structure of the town.
A phrase that combines a verb with a preposition or adverb or both and that functions as a verb whose meaning is different from the combined meanings of the individual words
A compilation of 50 phrasal verbs.