Month definitions

mŭnth
A unit of time corresponding approximately to one cycle of the moon's phases, or about 30 days or 4 weeks.
noun
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One of the 12 divisions of a year as determined by a calendar, especially the Gregorian calendar.
noun
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A period extending from a date in one calendar month to the corresponding date in the following month.
noun
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1
A sidereal month.
noun
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A lunar month.
noun
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A solar month.
noun
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1
Any of the main parts (usually twelve) into which the calendar year is divided.
noun
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The period of a complete revolution of the moon around the earth with respect to some object.
  • The period (synodic month) marked by two successive lunar conjunctions with the sun, equal on the average to 29.53 days.
  • The sidereal month.
noun
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One twelfth of the solar year.
noun
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The definition of a month is any of the twelve parts of the calendar year.

An example of a month is January.

noun
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The time from any date of one month to the corresponding date of the next.
noun
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A period of four weeks or 30 days.
noun
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A period into which a year is divided, historically based on the phases of the moon. In the Gregorian calendar there are twelve months: January, February, March, April, May, June, July, August, September, October, November and December.

July is my favourite month.

noun
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A period of 30 days, 31 days, or some alternation thereof.

We went on holiday for two months.

noun
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Origin of month

From Middle English month, moneth, from Old English mōnað (“month"), from Proto-Germanic *mÄ“nōþs (“month"), from Proto-Indo-European *mḗh₁nÌ¥s (“moon, month"), probably from Proto-Indo-European *mê- (“to measure"), referring to the moon's phases as the measure of time, equivalent to moon +"Ž -th. Cognate with Scots moneth (“month"); North Frisian muunt (“month"); Saterland Frisian Mound (“month"), Dutch maand (“month"); German Low German Maand, Monat (“month"); German Monat (“month"); Danish mÃ¥ned (“month"); Swedish mÃ¥nad (“month"); Icelandic mánuði (“month"); Latin mÄ“nsis (“month"); Ancient Greek μήν (mḗn); Armenian Õ¡Õ´Õ«Õ½ (amis); Old Irish mí; Old Church Slavonic мѣсѧць (mÄ›sÄ™cÄ­). See also moon.