any of the twelve named periods, divisions of the year corresponding approximately with the period of the moon's rotation around the earth and being between 28 and 31 days in duration, into which the year is divided. Also called calendar month
a period of four weeks
the interval between the same date in adjacent months
(in pl) an indefinite, usu protracted, period of time
He's been gone for months
one ninth of the typical duration of human pregnancy
in her eighth month
a month of Sundays
informal a very long period of time
[Old English mōnath; related to Old High German mānōd month, Old English mōna moon]