flare-up

noun
\ ˈfler-ˌəp How to pronounce flare-up (audio) \

Definition of flare-up

1 : a sudden outburst or intensification a flare-up of hostilities
2 : a sudden bursting (as of a smoldering fire) into flame or light a danger of flare-ups
3 : a sudden appearance or worsening of the symptoms of a disease or condition an asthmatic flare-up

First Known Use of flare-up

1839, in the meaning defined at sense 1

Keep scrolling for more

Learn More about flare-up

Time Traveler for flare-up

Time Traveler

The first known use of flare-up was in 1839

See more words from the same year

Statistics for flare-up

Cite this Entry

“Flare-up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flare-up. Accessed 20 Apr. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for flare-up

flare-up

noun

English Language Learners Definition of flare-up

: a sudden occurrence of flame
: a sudden occurrence or expression of anger
: an occurrence in which something (such as violence or a disease) suddenly begins or becomes worse

flare-up

noun
\ -ˌəp How to pronounce flare-up (audio) \

Medical Definition of flare-up

: a sudden appearance or worsening of the symptoms of a disease or condition an asthmatic flare-up

More from Merriam-Webster on flare-up

Thesaurus: All synonyms and antonyms for flare-up

Comments on flare-up

What made you want to look up flare-up? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Flower Edition

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
 AlphaBear 2

Spell words. Make bears.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!