blue moon
Hardly ever happens
A blue moon is the second full moon in a calendar month—a rare occurrence that happens roughly every two or three years.
The phrase once in a blue moon means very rarely or almost never: I only see my cousins once in a blue moon.
Occasionally the moon actually appears bluish due to atmospheric particles from volcanic eruptions or forest fires, but this literal sense is uncommon.
Of the moon
- eclipseCelestial body blocks another
- syzygyTrilinear celestial arrangement
- perigeeOrbit's closest point
- calendarDate-tracking system
cycle · phase · full · second · monthly · orbit · celestial · phenomenon
Seldom found or seen
- infrequentHappening only occasionally
- uncommonSeldom occurring or found
- scarceIn short supply
- sporadicOccurring irregularly, infrequently
once-in-a-lifetime · seldom · occasional · exceptional · unusual · anomaly · phenomenon · extraordinary
Dark hours daily
- skyVisible overhead expanse
- twilightLight after sunset
- starryFilled with luminous points
- darknessTotal absence of light
glow · luminous · ethereal · silvery · nocturnal · mystical · celestial · romantic
Musical piece with words
- melodyPleasing sequence of notes
- lyricsWritten words for music
- HartEnglish-origin family name
- croonerSoft-voiced romantic vocalist
Rodgers · jazz · standard · torch · serenade · Sinatra · Fitzgerald · rendition
Conveyed thought or feeling
- sayingShort, wise expression
- metaphorImplied identity comparison
- figurativeRepresenting through imagery
- colloquialismCasual conversational expression
idiomatic · hyperbole · phrase · vernacular · proverb · speech · exaggeration · phraseology
lunar
Of the moon
- eclipseCelestial body blocks another
- syzygyTrilinear celestial arrangement
- perigeeOrbit's closest point
calendar · cycle · phase · full · second · monthly · orbit · celestial · phenomenon · seasonal
rare
Seldom found or seen
- infrequentHappening only occasionally
- uncommonSeldom occurring or found
- scarceIn short supply
sporadic · once-in-a-lifetime · seldom · occasional · exceptional · unusual · anomaly · phenomenon · extraordinary · singular
night
Dark hours daily
darkness · glow · luminous · ethereal · silvery · nocturnal · mystical · celestial · romantic · enchanting
song
Musical piece with words
Rodgers · crooner · jazz · standard · torch · serenade · Sinatra · Fitzgerald · rendition · vocals
expression
Conveyed thought or feeling
- sayingShort, wise expression
- metaphorImplied identity comparison
- figurativeRepresenting through imagery
colloquialism · idiomatic · hyperbole · phrase · vernacular · proverb · speech · exaggeration · phraseology · cliché
- moonfull moon, lunar, crescent moon, new moon, half moon
- full moonsfull moon, harvest moon, hunter's moon, wolf moon, snow moon
- night skystars, moon, constellations, shooting stars, constellation
- phenomenanorthern lights, eclipse, earthquake, solar eclipse, volcanic eruption
- celestial cycleslunar cycle, solar cycle, lunar phase, orbit, eclipse
- celestial eventssolar eclipse, lunar eclipse, meteor shower, eclipse, supernova
blue moonregularly
At fixed intervals
often · frequently · constantly · all the time · daily
blue moonpredictably
In an expected manner
like clockwork · without fail · reliably · on schedule · as expected
moonlight, bluish, blueness, bluebell, blueish, bluesman, moonscape, bluing, bluishness