The mouth of a river is the outlet.
Maybe Stream.
delta
Origin
delta?
stream
stream
bridge
Source.
rapids
Deltas
Wabash River
Albany, Hudson (ha ha - but it's true), Beacon
Anthem is a six letter word ending with them.
A six letter word for 'snake' is python.
Accord is a six letter word. Accrue is another six letter word.
a six letter word for fame is famousrenown/repute/credit
A six letter word that starts with U is upward.
MIRROR is a six letter word with three r's in it