over-under

American

[oh-ver-uhn-der] / ˈoʊ vərˈʌn dər /

adjective

(of double-barreled firearms) with one barrel mounted over the other.

noun

such a firearm.

over-under British

adjective

(of a two-barrelled firearm) having one barrel on top of the other

"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

noun

an over-under firearm

"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

Etymology

Origin of over-under

First recorded in 1910–15

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

over-under

It proclaims an over-under “ME/WE,” that reads as a word and its reflection.

From The Wall Street Journal ● Dec. 17, 2025

BetMGM also has set the over-under on first-round receivers at 6 1/2 with the record of seven happening in 2004.

From Seattle Times ● Apr. 24, 2024

One could reasonably argue that winning the Super Bowl two years ago at SoFi Stadium justifies last season’s disaster and this season’s low expectations — oddsmakers put the Rams’ over-under for victories at 6½.

From Los Angeles Times ● Jul. 25, 2023

FanDuel Sports Book currently lists their season win over-under bet at 13.5.

From Washington Times ● Oct. 18, 2022

Plus, before the season began, the Westgate SuperBook had the Commanders favored by 2½ in this game, and all the Vegas sites had Washington’s over-under win total higher than Chicago’s.

From Washington Post ● Sep. 15, 2022

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023