What does nu mean in ancient Egypt?

Since hieroglyphs did not include vowels there is no Word written "nu". There are many Words written with the two consonants nw:

• nw...................to see, to look
• nw...................this, these
• nw...................hunter
• nw...................weakness
• nw...................time, for a while
• nw...................to be weak
• nw...................time
• nw...................of, belonging to

Each of these Words is written in a different way and its meaning is clarified by a particular "determinative" sign placed at the end.