The brook joins the river a few miles below that bridge.

[Shie0605]

The brook joins the river a few miles below that bridge.

I found the sentence in a dictionary.

Is "a few miles" a noun used as adverb to modify "joins the river"?

 

[Tarheel]

I think "a few miles" could be seen as a noun phrase. It is, of course, indefinite. The person giving those directions might not know the exact distance, which is why "a few miles" was used.

I hope that helps you understand the sentence.

 

[emsr2d2]

@Shie0605 Please provide the complete source - the name of the dictionary. Ideally, give us a link to the page you found it on and tell us what single word you were looking up at the time.