Definition

1. Noun:
   • A unit of time: A month is a period of time approximately equal to 30 days or 1/12 of a year, used in calendars.
   • A calendar division: One of the twelve named periods (e.g., January, February) that make up a year.

Usage and Examples

• As a unit of time:
  • The project will take about a month to complete.
  • She goes to visit her family once a month.
• As a calendar division:
  • My birthday is in the month of June.
  • Last month was particularly rainy.

Advanced Usage

• "Calendar month": Refers to a specific month as it appears on the calendar, from the first to the last day (e.g., January 1 to January 31).
  • Rent is due on the first day of each calendar month.
• "Lunar month": A month measured by the phases of the moon, approximately 29.5 days.
  • Some religious holidays are calculated based on the lunar month.

Variants and Related Words

• Monthly (adj/adv): Occurring, done, or payable every month.
  • We have a monthly team meeting. (adj)
  • The magazine is published monthly. (adv)
• Bimonthly (adj/adv): Occurring every two months or twice a month. (Note: This word can be ambiguous.)
• Month-long (adj): Lasting for a month.
  • They embarked on a month-long expedition.

Synonyms

• Four-week period: A less common synonym emphasizing the approximate length.
• Moon (archaic/poetic): Sometimes used to mean a month, based on lunar cycles.

Related Phrases and Idioms

• A month of Sundays: An idiom meaning a very long, seemingly endless period of time.
  • I haven't seen him in a month of Sundays.
• Flavor of the month: An idiom describing something that is very popular or fashionable for a short time.
  • That diet is just the flavor of the month; it will be forgotten soon.

Noun

1. a time unit of approximately 30 days
   • he was given a month to pay the bill
2. one of the twelve divisions of the calendar year
   • he paid the bill last month