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ass (general anatomy)


the fleshy part of the human body that you sit on


body noun (body parts)





Part of:

torso » body

Original source:

Princeton WordNet


backside | behind | bottom | butt | buttocks [plural] | can | fundament | hind end | hindquarters [plural] | hurdies [plural, Scotland] | nates [plural] | posterior | prat | rear | rear end | rump | seat | stern | tail | tail end | arse [informal] | bahookie [informal, Scotland] | botty [Britain, informal] | bum [informal] | buns [informal, plural] | derriere [informal] | derrière [French, informal] | fanny [informal, North America] | heinie [informal] | keester [informal] | keister [informal] | tooshie [informal] | tush [informal] | tushie [informal] | tushy [informal]


Middle English as, ass, asse, from Old English assa ("male donkey") and assen...
(Source: Wiktionary)  [more]

All senses of ass...

Definition references  (+images)


Rear-end collision | rear-end | shunt

a traffic accident wherein a vehicle crashes into the vehicle in front of it. Common factors that contribute to rear-end collisions include by driver inattention or distraction, tailgating, panic stops, and reduced traction due to weather or worn ... (38 of 528 words, 2 images)

en​.wikipedia​.org​/wiki​/Rear-end collision

Oxford Dictionary:

rear [entry 1] | rear end | bring up the rear | take someone in rear

[singular] : the back part of something, especially a building or vehicle | the space or position at the back of something or someone | the hindmost ... (25 of 181 words, 9 definitions, 7 usage examples, pronunciation)



rear end | buttocks [synonym] | backside [synonym] | behind [synonym] | booty [slang, synonym] | bottom [slang, synonym] | breech [slang, synonym] | bum [slang, synonym] | buns [slang, synonym] | ...

"buttocks" (1 of 94 words)

www​.merriam-webster​.com​/dictionary​/rear end

Random House Dictionary:

rear end | rear-end | tail end [synonym, sense-specific]

the hindmost part of something. | [informal] the buttocks; behind. | "rear-end" : to drive a vehicle or other conveyance so as to strike the back end ... (25 of 76 words, 4 definitions, 2 usage examples, pronunciation)


Macmillan British Dictionary:

rear end [countable] | rear ends [plural]

the back part of something, especially a vehicle | [informal] the part of your body that you sit on (18 of 46 words, 2 definitions)


Cambridge Dictionary:

rear [entry 2] | the rear | rear end

"the rear": the back part of something | ("rear end") [old-fashioned informal] a person's bottom (14 of 42 words, 2 definitions, 2 usage examples, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/rear 2

American Heritage Dictionary:

rear end | rear-ended [past tense] | rear-ending [present participle] | rear-ends [3rd-person singular present] | rear-end | rear-ender [noun, related]

The rear part | [informal] The buttocks. | [slang] To run into (another motor vehicle) from behind (15 of 40 words, 3 definitions, 2 usage examples, pronunciation)


New World Dictionary:

rear end | rear-end

the back part of something | [slang] the buttocks | to crash into, or cause one's vehicle to crash into, the back end of (another vehicle) (24 of 29 words, 3 definitions, pronunciation)



rear end | rear ends [plural]

The back or hindmost part of anything, such as a car. | [slang] The buttocks. (14 of 15 words, 2 definitions)

en​.wiktionary​.org​/wiki​/rear end

Collins Dictionary:

buttocks | buttock | aris [Cockney, offensive, synonym]

the two large fleshy masses of thick muscular tissue that form the human rump | the analogous part in some mammals | either of the two large fleshy ... (26 of 536 words, 4 definitions, 9 usage examples, pronunciations)


Britannica Encyclopedia:

tail [zoology]

in zoology, prolongation of the backbone beyond the trunk of the body, or any slender projection resembling such a structure. The tail of a vertebrate ... (25 of 163 words, 2 images)


Columbia Encyclopedia:

ass | ghor-khar | burro | donkey | jackass | kiang | kulan | jenny

hoofed, herbivorous mammal of the genus "Equus", closely related to the horse. It's distinguished from the horse by its small size, large head, long ... (24 of 102 words)


Encarta Dictionary:

rear end [definition 1, definition 3] | rear ends [plural]

rear (1 of 16 words)

encarta​.msn​.com​/dictionary 1861699599​/definition​.html  [offline]

Etymology references


ass | asses [plural]

Origin: Middle English as, ass, asse, from Old English assa ("male donkey") and assen... | Used chiefly in North America. From arse (used in the UK, Australia, New Zealand etc.) based on non-rhotic pronunciation... (32 of 127 etymology words)


American Heritage Dictionary:

ass | asses [plural]

Origin: Middle English asse, from Old English assa, perhaps of Celtic origin, ultimately from Latin asinus. | Middle English ... (17 of 27 etymology words)


New World Dictionary:


Origin: Middle English asse from Old English assa, assen: probably from Old Irish assan or Welsh asyn, both from Latin asinus | variant of "arse"


Collins Dictionary:

ass | arse | (Canadian) ass [United States] | (ˈɑːsˌhəʊl) [United States]

Origin: Old English assa, probably from Old Irish asan, from Latin asinus; related to Greek onos ass | Old English ærs; see arse | OE


Oxford Dictionary:

ass [entry 1]

Origin: Old English assa, from a Celtic word related to Welsh asyn, Breton azen, based on Latin asinus


ass [entry 2] | someone's | tear | haul | into | care | have | bust

Origin: variant of "arse"



Origin: Old English ærs, of Germanic origin; related to Dutch aars and German Arsch



ass [entry 1, noun]

First use: before 12th century

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


ass [entry 2, noun] | arse

First use: before 12th century

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

www​.merriam-webster​.com​/dictionary​/ass show=1

ass [entry 3, adverb]

First use: about 1920

Origin: ass

www​.merriam-webster​.com​/dictionary​/ass show=2

Encarta Dictionary:

ass [entry 1] | asses [plural]

Origin: Old English assa, via Celtic from Latin asinus

encarta​.msn​.com​/dictionary 1861695715​/definition​.html  [offline]

ass [entry 2] | asses [plural]

First use: Mid-19th century

Origin: Euphemistic alteration of arse

encarta​.msn​.com​/dictionary 1861587221​/definition​.html  [offline]

Audio references


ass | asses [plural]

Audio: North American English pronunciation of "ass"


Collins Dictionary:

ass | arse | (Canadian) ass [United States] | (ˈɑːsˌhəʊl) [United States]

Audio: North American English pronunciation of "ass"


Macmillan American Dictionary:

ass [noun] | asses [plural]

Audio: North American pronunciation of "ass"


Macmillan British Dictionary:

ass | asses [plural]

Audio: British English pronunciation of "ass"


Cambridge Dictionary:

ass [entry 3]

Audio 1: British English pronunuciation of "ass"

Audio 2: North American English pronunuciation of "ass"

dictionary​.cambridge​.org​/dictionary​/british​/ass 3

the Free Dictionary:


Audio 1: North American English pronunciation of "ass"

Audio 2: British English pronunciation of "ass"

Audio 3: North American English pronunciation of "ass" by speech synthesizer


Google Dictionary:

ass | asses [plural]

Audio: English pronunciation of "ass"


Merriam-Webster Pronunciation:

YourDictionary Audio:


Audio: North American English pronunciation of "ass" by speech synthesizer


Page last updated: 2013-06-26

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