Dictionary.com

blowup

[ bloh-uhp ]
/ ˈbloʊˌʌp /
Save This Word!

noun
an explosion.
a violent argument, outburst of temper, or the like, especially one resulting in estrangement.
Also blow-up . an enlargement of a photograph.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?

Origin of blowup

First recorded in 1800–10; noun use of verb phrase blow up
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use blowup in a sentence

British Dictionary definitions for blowup

blow up

verb (adverb)
noun blow-up
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Idioms and Phrases with blowup

blow up

1

Explode or cause to explode. For example, The squadron was told to blow up the bridge, or Jim was afraid his experiment would blow up the lab. The term is sometimes amplified, as in blow up in one's face. [Late 1500s]

2

Lose one's temper, as in I'm sorry I blew up at you. Mark Twain used this metaphor for an actual explosion in one of his letters (1871): “Redpath tells me to blow up. Here goes!” [Colloquial; second half of 1800s]

3

Inflate, fill with air, as in If you don't blow up those tires you're sure to have a flat. [Early 1400s]

4

Enlarge, especially a photograph, as in If we blow up this picture, you'll be able to make out the expressions on their faces. [c. 1930]

5

Exaggerate the importance of something or someone, as in Tom has a tendency to blow up his own role in the affair. This term applies the “inflate” of def. 3 to importance. It was used in this sense in England from the early 1500s to the 1700s, but then became obsolete there although it remains current in America.

6

Collapse, fail, as in Graduate-student marriages often blow up soon after the couple earn their degrees. [Slang; mid-1800s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
FEEDBACK