Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “supernova”

supernova

noun [C] uk   /ˌsuː.pəˈnəʊ.və/ us    /-pɚˈnoʊ-/ (plural supernovae   /-viː/   or supernovas)
a star that has exploded, strongly increasing its brightness for a few monthsStars and constellations
(Definition of supernova from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of supernova?
Add Cambridge dictionaries to your browser to your website

Translations of “supernova”

Word of the Day

innovate

to introduce changes and new ideas

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More