Definition

1. Noun:
   • A specific, recurring appearance of the Moon as seen from Earth: This refers to the shape of the illuminated portion of the Moon that is visible from Earth, which changes cyclically over approximately 29.5 days. The appearance is determined by the relative positions of the Sun, Earth, and Moon.

Usage

• The term "phase of the moon" is used to describe the Moon's visual form at a specific point in its monthly orbit. It is a countable noun phrase.
• Common Prepositions: It is often used with the preposition "of" (e.g., ) or "in" (e.g., ).

Examples

• Noun:
  • Farmers in the past often planted crops according to the phase of the moon.
  • The calendar showed the phase of the moon for each day of the month.
  • A full moon is the brightest phase of the moon.

Advanced Usage

• "to enter a new phase of the moon": This describes the transition from one lunar appearance to the next.
  • Tonight, the moon will enter a new phase.
• Used in technical and astronomical contexts to specify precise points in the lunar cycle.

Variants and Related Words

• Lunar phase (n): A direct synonym for "phase of the moon."
• Moon phase (n): A common, shortened variant.
• Phase (n): When context is clear, "phase" alone can refer to a lunar phase (e.g., ).

Synonyms

• Lunar phase
• Moon phase

Related Terms (Not Phrasal Verbs or Idioms)

• New moon: The phase when the moon is not visible from Earth.
• First quarter: The phase when half of the moon's disk is illuminated.
• Full moon: The phase when the entire disk is illuminated.
• Last quarter: The phase when the opposite half from the first quarter is illuminated.
• Waxing: Describes the period when the visible illuminated area is increasing.
• Waning: Describes the period when the visible illuminated area is decreasing.

Noun

1. a time when the Moon presents a particular recurring appearance