What is another word for old moon?
Pronunciation: [ˈə͡ʊld mˈuːn] (IPA) 
The term "old moon" refers to the last visible phase of the moon before it disappears completely in the new moon phase. There are several synonyms for the term old moon including "waning crescent moon" which refers to the moon when it is less than half illuminated and its light gradually fades away. Another synonym is "decrescent moon" which describes the gradually diminishing illuminated side of the moon. Other words that can be used to refer to an old moon include "waning gibbous", "waning half", "waning crescent" or "waning quarter". Whatever you call it, the old moon is a beautiful sight to behold in the night sky.
