calendar month ca·len·dar·month uncommon noun 1. one of the twelve divisions of the calendar year “he paid the bill last month” Synonymscalendar monthmonth Related words Broader terms time period Narrower terms dateRevolutionary calendar monthGregorian calendar monthJewish calendar monthIslamic calendar monthHindu calendar month Part of week WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
