the moon when it appears as a narrow waxing crescent
WordReference Random House Learner's Dictionary of American English © 2026
ˈnew ˈmoon, n. [countable* usually singular]
WordReference Random House Unabridged Dictionary of American English © 2026- Astronomythe moon when it is almost invisible or visible only as a slender crescent.
new′ moon′,
- Astronomythe moon either when in conjunction with the sun or soon after, being either invisible or visible only as a slender crescent.
- Astronomythe phase of the moon at this time. See diag. under moon.
- bef. 1000; Middle English; Old English
Collins Concise English Dictionary © HarperCollins Publishers::
'new moon' also found in these entries (note: many are not synonyms or translations):
Islamic calendar
- Metonic cycle
- Rosh Hodesh
- epact
- first quarter
- lunation
- moon
- old moon
- spring tide
- syzygy
- wane
- waning moon
- wax
- waxing moon