ass

1 of 3

noun (1)

1
: any of several hardy gregarious (see gregarious sense 1a) African or Asian perissodactyl mammals (genus Equus) smaller than the horse and having long ears
especially : an African mammal (E. africanus) that is the ancestor of the donkey
2
informal + impolite : a stupid, stubborn, or detestable person
a pompous ass
made an ass of himself
He was an ass to her, dissing her script (which he apparently lost), telling her women couldn't be artists and that she looked so much prettier with makeup on.Lauren Piester
often compounded with a preceding adjective
Don't be a smart-ass.

ass

2 of 3

noun (2)

variants or arse
ˈas,
ˈärs How to pronounce ass (audio)
1
a
informal + impolite : buttocks
often used in emphatic reference to a specific person
Get your ass over here.
saved my ass
b
informal + impolite : anus
2
offensive : sexual intercourse

ass

3 of 3

adverb

informal + impolite
used as a postpositive intensive especially with words of derogatory implication
fancy-ass

Examples of ass in a Sentence

Noun (1) the farm kept a few asses for hauling hay in and out of the field
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.
Noun
Here’s a guy who’s just married, on his honeymoon, drunk off his ass, and being given the steering wheel to a plane with 400 people behind him. Lynette Rice, Deadline, 13 Sep. 2025 First-party Nintendo games get confirmed dates In an initially confusing teaser, Metroid heroine Samus Aran appeared in the direct riding a bad ass sci-fi motorcycle in what looked like an entirely new game. Christopher Cruz, Rolling Stone, 12 Sep. 2025 Like, don’t make an ass out of me. Lizzie Lanuza, StyleCaster, 9 Sep. 2025 Everyone’s not kind of having to cover their ass in case something messes up. Etan Vlessing, HollywoodReporter, 6 Sep. 2025 See All Example Sentences for ass

Word History

Etymology

Noun (1)

Middle English, from Old English assa, probably from Old Irish asan, from Latin asinus

Noun (2) and Adverb

Middle English ars, ers, from Old English ærs, ears; akin to Old High German & Old Norse ars buttocks, Greek orrhos buttocks, oura tail

First Known Use

Noun (1)

before the 12th century, in the meaning defined at sense 1

Noun (2)

circa 1627, in the meaning defined at sense 1a

Adverb

circa 1920, in the meaning defined above

Time Traveler
The first known use of ass was before the 12th century

Cite this Entry

“Ass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ass. Accessed 17 Sep. 2025.

Kids Definition

ass

noun
ˈas
1
: any of several mammals resembling but smaller than the related horses and having a shorter mane, shorter hair on the tail, and longer ears
especially : donkey
2
informal : a stupid or stubborn person

More from Merriam-Webster on ass

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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