See more synonyms for monthly on
  1. pertaining to a month, or to each month.
  2. done, happening, appearing, etc., once a month: a monthly magazine.
  3. computed or determined by the month: a monthly salary.
  4. continuing or lasting for a month.
noun, plural month·lies.
  1. a periodical published once a month.
  2. Sometimes monthlies. Informal. a menstrual period.
  1. once a month; by the month.

Origin of monthly

First recorded in 1525–35; month + -ly
Related formshalf-month·ly, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for monthly

Contemporary Examples of monthly

Historical Examples of monthly

British Dictionary definitions for monthly


  1. occurring, done, appearing, payable, etc, once every month
  2. lasting or valid for a montha monthly subscription
  1. once a month
noun plural -lies
  1. a book, periodical, magazine, etc, published once a month
  2. informal a menstrual period
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for monthly

1530s, from month + -ly (2). As an adjective from 1570s. Old English had monaþlic, but the modern words seem to be separate formations.

Online Etymology Dictionary, © 2010 Douglas Harper