died off; dying off; dies off

intransitive verb

: to die sequentially either singly or in numbers so that the total number is greatly diminished

Examples of die off in a Sentence

Recent Examples on the Web
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.
Without the right environmental variables, the microbial neighborhoods will simply die off — and Yi has also thought through all the left-field scenarios that could have jeopardized the work. Jacqui Palumbo, CNN Money, 29 May 2026 The oats will die off slowly after a series of hard freezes. Special To The Denver Post, Denver Post, 29 May 2026 The testing area is within the Chattahoochee River National Recreation Area, north of where the fish die off took place further downstream. Irene Wright, USA Today, 28 May 2026 Even tenths of a degree of warming cause problems for Earth’s ecosystems, as species die off, fresh water becomes more scarce and extreme weather events, such as flooding and heat waves, intensify. Seth Borenstein, Los Angeles Times, 27 May 2026 See All Example Sentences for die off

Word History

First Known Use

1697, in the meaning defined above

Time Traveler
The first known use of die off was in 1697

Browse Nearby Words

See all Nearby Words

Cite this Entry

“Die off.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/die%20off. Accessed 12 Jun. 2026.

Kids Definition

die-off

noun
ˈdī-ˌȯf
: a sudden sharp drop in the numbers of plants or animals in a group
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