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moon

moon

15 3.7
A period of about 29 to 30 days used in some calendars
  • noun
  • /muːn/
  • Specialized
: mes lunar
  • And look at that, tomorrow is the new moon.
  • new moon
  • days from new moon

Astronomy on the third Tuesday of the fourth moon.

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Examples

  • The lunar calendar consists of 12 months, each beginning with a new moon.

  • One particularly auspicious day each month, as dictated by the full-moon day, several hundred monks emerge in close succession.

    Academic text (2005)
  • Is today the day of the full moon?

  • To celebrate the union of our houses, I propose to meet in peace at new moon.

  • Lily was surprised because the monthly full moon dance was that night.

    Fiction book (1994)
  • But there's a full moon rising. "Let's go dancing in the light."

    Fiction book (1997)
  • Della thought of the new moon, the starry doors open above her.

    Fiction book (1995)
  • September and its fiery leaves and harvest moons would be here soon enough.

    Fiction book (1996)
  • October 11-13: The waning crescent moon passes between Gemini and Leo in the morning sky.

    Academic text (1990)
  • Every October, beginning on the fifth waxing moon day, pilgrims flock to the pagoda for the annual three-week festival.

    Academic text (2004)

Synonyms

month
vsmoon
∞ 1.0

A period of about four weeks or one of the twelve parts of the year

specifies the 29.5 day cycle rather than general longer or shorter calendar periods
lunar month
vsmoon
  • Specialized
1 3.6

About 29 and a half days from one new moon to the next

is used in calendars based on that 29.5 day cycle
lunation
vsmoon
  • Specialized
1 9.9

The time from one new moon to the next, about 29 and a half days

is the calendar measure used for those repeating cycles
synodic month
vsmoon
  • Specialized
1 9.3

The time between one new moon and the next, about 29.5 days

is treated as the calendar unit rather than a scientific average

Idioms

over the moon
  • Informal
14 4.9

Feeling very happy and excited because something good happened

7 8.2

To make a long loud cry like a wolf to show strong feeling

6 5.0

Happens very rarely

3 6.3

Feel very strong love for someone

2 6.8

Tell someone you will do something very big although you cannot do it

2 7.6

To demand something that is impossible or too much

to hung the moon
  • Informal
2 9.6

To think someone is perfect and cannot do wrong

Admire someone so much that you think they are perfect

An impossible thing that someone asks for

To want something that is impossible or not realistic

Compounds

113 1.2

A time when the Moon's whole face looks bright from Earth

17 2.8

A thin crescent of the Moon that first appears after a dark period

blue moon
  • Informal
16 6.1

An event that happens very rarely

10 4.7

A full moon that comes soon after the start of autumn and gives extra light for farmers

man in the moon
  • Literature
9 6.7

A shape people imagine on the moon's surface that looks like a face

The half of the Moon that we never see from Earth

7 5.4

The moon looks red during a total eclipse when it passes into Earth's shadow because Earth's air filters sunlight

6 2.6

A time when half of the Moon appears lit by the Sun

A stage in the Moon's cycle that shows how much of it is lit

1 7.9

A very ambitious project that is unlikely to succeed

1 4.2

A pale curved area at the base of a fingernail

moon shot
  • Specialized
1 5.1

A rocket launch that sends a spacecraft to the moon

1 3.9

A pale beam of light from the moon that shines at night

moon blindness
  • Archaic
1 9.8

Poor sight at night in people and animals often caused by lack of vitamin A

blue moon event
  • Informal
1 6.6

A very rare event that almost never happens

1 9.1

A tree grown from seeds taken to the Moon on a space mission

The time when the Moon looks fully round and very bright

1 9.9

An act of praying to the moon as if it were a god

moon shell
  • Specialized
1 8.2

A smooth rounded sea snail shell with a small top often found on sandy beaches

1 8.6

A thin beam of light from the moon

moon-splashed
  • Literature
1 7.5

A place or object that has small areas lit by moonlight

full moon maple
  • Specialized
1 8.1

A small tree grown for its pretty, deeply cut leaves that turn bright red in autumn

A time when the Moon looks completely lit in the night sky

9.9

A small evergreen bush with soft hairy leaves, yellow summer flowers, and snail-shaped seed pods

moon blindness
  • Specialized
9.8

Repeated inflammation in a horse's eye that can cause blindness

9.9

A plant with tall stems, thin leaves, and clusters of small white or pink flowers

9.9

A person who secretly brings goods into or out of a country to avoid paying taxes

6.2

A tall plant with white daisy-like flowers that grows in fields

9.9

A person who brings goods into or out of a country secretly to avoid paying taxes

9.9

A curved part of a fort wall shaped like a half moon for defenders to fire on attackers

A time when the Moon looks like a thin crescent at the start of a new moon cycle

How Long

year
∞ 1.0
season
∞ 1.0
moon
  • Specialized
15 3.7
week
∞ 1.0
day
∞ 1.0

Surface Forms

moon singular
moons plural

Etymology

Moon also means the time between two new moons because people used the moon's cycle to 'measure' months, so a moon can mean a full moon cycle.