Phrasal verbs consists of a basic verb + another word or words. The two or three words that make up a phrasal verb form a short 'phrase' - which is why we call them 'phrasal verbs'.
Phrasal Verb:
batter something down
Meaning:
to smash or break down something, such as a wall, door, or any defensive structure.
Example:
Do they have to batter anything down as part of the construction project?
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.