Definition of "calends" in English

noun

1. Often 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. (by extension) A day for settling debts and other accounts.

3. (by extension, biblical, Judaism, obsolete) Synonym of Rosh Hodesh (“the Jewish festival of the new moon, which begins the months of the Hebrew calendar”).

4. (rare) Synonym of calendar; (figurative) an account, a record.

5. (obsolete, figurative) The first day of something; a beginning.

noun

1. (obsolete, rare) plural of calend