Definitions
1.NounOften with initial capital: the first day of a month."The third day before the calends of February is 30 January, the third calends of March is 27 or 28 February, and the third of the calends of May is 29 April."
2.NounThe first day of a month of the Roman calendar.
3.NounA day for settling debts and other accounts.
4.NounSynonym of Rosh Hodesh (“the Jewish festival of the new moon, which begins the months of the Hebrew calendar”).
5.NounSynonym of calendar; an account, a record.
6.NounThe first day of something; a beginning.
7.Nounplural of calend