noun
Often with initial capital: the first day of a month.
(by extension) A day for settling debts and other accounts.
(by extension, biblical, Judaism, obsolete) Synonym of Rosh Hodesh (“the Jewish festival of the new moon, which begins the months of the Hebrew calendar”).
(rare) Synonym of calendar; (figurative) an account, a record.
(obsolete, figurative) The first day of something; a beginning.
noun
(obsolete, rare) plural of calend