Synonyms of eclipse
1
a
: the total or partial obscuring of one celestial body by another
b
: the passing into the shadow of a celestial body compare occultation, transit
2
: a falling into obscurity or decline
also : the state of being eclipsed
his reputation has fallen into eclipse
3
: the state of being in eclipse plumage

Illustration of eclipse

Illustration of eclipse
  • E earth
  • M moon in solar eclipse
  • P penumbra
  • S sun
  • U umbra

eclipse

2 of 2

verb

eclipsed; eclipsing

transitive verb

: to cause an eclipse of: such as
b
: to reduce in importance or repute
c
: surpass
her score eclipsed the old record

Examples of eclipse in a Sentence

Noun an eclipse of the sun The popularity of television led to the eclipse of the radio drama. an artist whose reputation has long been in eclipse Verb The sun was partially eclipsed by the moon. Train travel was eclipsed by the growth of commercial airlines.
Recent Examples on the Web
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Noun
Seeing a partial eclipse bears the same relation to seeing a total eclipse as kissing a man does to marrying him, or as flying in an airplane does to falling out of an airplane. — James Folta, Literary Hub, 16 Sep. 2026 That’s also called an eclipse, and for us, in the dramatography and in developing the story, this knowing and not knowing, what is visible and what is not visible also became important. — Georg Szalai, HollywoodReporter, 3 Sep. 2026
Verb
New satellite imagery suggests China’s Type 004 could eclipse the size of America’s largest aircraft carrier. — Aamir Khollam, Interesting Engineering, 24 Sep. 2026 In getting out ahead of OpenAI, Zuckerberg is building on the momentum of Muse, which skyrocketed to the top of Apple's App Store, eclipsing ChatGPT. — Jonathan Vanian, CNBC, 24 Sep. 2026 See All Example Sentences for eclipse

Word History

Etymology

Noun

borrowed from Middle English eclipse, clips, borrowed from Anglo-French eclyps, eclypse, borrowed from Latin eclīpsis, borrowed from Greek ékleipsis "abandonment, failure, cessation, obscuring of a celestial body by another," from ekleípein "to leave out, abandon, cease, die, be obscured (of a celestial body)" (from ek- ec- + leípein "to leave, quit, be missing") + -sis -sis — more at delinquent entry 2

Verb

Middle English eclypsen, clypsen, derivative of eclipse eclipse entry 1, probably after Medieval Latin eclīpsāre or Middle French esclipser

First Known Use

Noun

13th century, in the meaning defined at sense 1a

Verb

13th century, in the meaning defined above

Time Traveler
The first known use of eclipse was in the 13th century

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Cite this Entry

“Eclipse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eclipse. Accessed 29 Sep. 2026.

Kids Definition

1
a
: the total or partial hiding of a planet, star, or moon by another
b
: the passing into the shadow of a planet, star, or moon
2
: a falling into disgrace or out of use or public favor

eclipse

2 of 2 verb
eclipsed; eclipsing
1
: to cause an eclipse of
2
a
: to reduce in importance
b
: to do or be much better than : outshine

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