on fire

phrase

Definition of on firenext
as in passionate
having or expressing great depth of feeling His heart was on fire from the day he met her.

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of on fire Firefighters arrived to find a semi-truck trailer loaded with toy batteries on fire next to a building. — Cecilio Padilla, CBS News, 12 Aug. 2026 Jarvis spent nearly three and a half years in state custody after being charged with arson for lighting his stepdad’s three-wheeler on fire. — Paige Pfleger, ProPublica, 12 Aug. 2026 Little League Baseball is on fire even before the big days in Williamsport. — Ryan Morik, FOXNews.com, 11 Aug. 2026 After the assault, Dowen continued to threaten the victim and other members of the victim’s family and set the victim’s home on fire. — Nollyanne Delacruz, Mercury News, 8 Aug. 2026 See All Example Sentences for on fire

Browse Nearby Words

on file
on fire
ongoing
See all Nearby Words

Cite this Entry

“On fire.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/on%20fire. Accessed 18 Aug. 2026.

Copy Citation
Love words? Need even more definitions?

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

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of oxymoron

See Definitions and Examples »

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

7 Pairs of Commonly Confused Words

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Do you 'say your piece' or 'say your peace'?

Why is '-ed' sometimes pronounced at the end of a word?
See More

Popular in Wordplay

See More

Words from the 'Odyssey'

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat

Is “GIF” Pronounced “Jiff” or “Giff”?

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Words from the 'Odyssey'

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
image of a green cube out of place in a lineup of red spheres
Odd Word Out: Synonyms Vol. 2 Quiz Figure out which word isn't like the others.
See All