blue nile

1. 1.

   a headstream of the Nile; joins the White Nile at Khartoum to form the Nile

   Broaderheadstream

Questions about blue nile

What does blue nile mean?

blue nile means "a headstream of the Nile; joins the White Nile at Khartoum to form the Nile".

Is blue nile a common word?

blue nile is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.