The term “collocation” refers to the way in which words are put together by native speakers in a phrase or sentence. Sometimes a collocation can be explained in terms of the grammar of the language but often there is no obvious explanation and it is simply a matter of idiom or what native speakers say, e.g. I am going to visit Brisbane.The phrase “to visit Brisbane” can be explained grammatically by stating that the verb “to visit” takes a direct object, “Brisbane”.