month

1. is a type of: period, period of time, time period - an amount of time
   subtypes:

   • date - the particular day, month, or year (usually according to the Gregorian calendar) that an event occurred
   • revolutionary calendar month - a month in the Revolutionary calendar
   • gregorian calendar month - a month in the Gregorian calendar
   • jewish calendar month - a month in the Jewish calendar
   • islamic calendar month - any lunar month in the Muslim calendar
   • hindu calendar month - any lunisolar month in the Hindu calendar
   has: calendar week, week - a period of seven consecutive days starting on Sunday
   same as: calendar month
2. is a type of: time unit, unit of time - a unit for measuring time periods
   subtypes:

   • lunar month, lunation, moon, synodic month - the period between successive new moons (29.531 days)
   • anomalistic month - period between successive perigees; approximately 27.5546 days
   • sidereal month - period between successive conjunctions with a star, 27.322 days
   • solar month - one-twelfth of a solar or tropical year
   has:

   • new moon, new phase of the moon - the time at which the Moon appears as a narrow waxing crescent
   • half-moon - the time at which the Moon is at first or last quarter when half its face is illuminated
   • full, full moon, full phase of the moon, full-of-the-moon - the time when the Moon is fully illuminated
   is a part of: year - the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun

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