month

noun

1. one of the twelve divisions of the calendar year

   noun.time

   Examples

   He paid the bill last month.

   Synonyms calendar month

   Source: WordNet 3.0

2. a time unit of approximately 30 days

   noun.time

   Examples

   He was given a month to pay the bill.

   Source: WordNet 3.0

3. 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 <i>month</i>.

   noun

   Source: webster1913