A phrasal verb is a verb that is combined with a preposition (e.g. in, on, with) or an adverbial particle (e.g. up, out, off) The preposition or adverbial particle extend the meaning of the verb ...

This combination of verb and adverb is always known as a phrasal verb. Note that it is not always possible to guess the meaning of phrasal verbs (or prepositional verbs for that matter ...