What is the crossword answer for the clue: North Sea tributary

DEE - a 3 letter word may be the answer you are looking for!

ELBE - a 4 letter word may be the answer you are looking for!

YSER - a 4 letter word may be the answer you are looking for!

MEUSE - a 5 letter word may be the answer you are looking for!

WESER - a 5 letter word may be the answer you are looking for!

North Sea tributary

3 Character Answers:

DEE

4 Character Answers:

ELBE

YSER

5 Character Answers:

MEUSE

WESER