| Month (n.) One of the twelve portions into which the year is divided; the twelfth part of a year, corresponding nearly to the length of a synodic revolution of the moon, -- whence the name. In popular use, a period of four weeks is often called a month. Thesaurus Entries abundant year, academic year, annum, bissextile year, calendar month, calendar year, century, common year, day, decade, decennary, decennium, defective year, fiscal year, fortnight, hour, leap year, lunar month, lunar year, lunation, luster, lustrum, man-hour, microsecond, millennium, millisecond, minute, moment, moon, quarter, quinquennium, regular year, second, semester, session, sidereal year, solar year, sun, term, trimester, twelvemonth, week, weekday, year |