sit-up

[ sit-uhp ]

/ ˈsɪtˌʌp /

SEE MORE SYNONYMS FOR sit-up ON THESAURUS.COM

noun

an exercise in which a person lies flat on the back, lifts the torso to a sitting position, and then lies flat again without changing the position of the legs: formerly done with the legs straight but now usually done with the knees bent.

Nearby words

sit-down, sit-down money, sit-down strike, sit-in, sit-ins, sit-up, sit-upon, sita, sitar, sitatunga, sitcom

Origin of sit-up

First recorded in 1835–45; noun use of verb phrase sit up

Definition for sit up (2 of 2)

sit

[ sit ]

/ sɪt /

verb (used without object), sat or (Archaic) sate; sat or (Archaic) sit·ten; sit·ting.

to rest with the body supported by the buttocks or thighs; be seated.

to be located or situated: The house sits well up on the slope.

to rest or lie (usually followed by on or upon): An aura of greatness sits easily upon him.

to place oneself in position for an artist, photographer, etc.; pose: to sit for a portrait.

to remain quiet or inactive: They let the matter sit.

(of a bird) to perch or roost.

(of a hen) to cover eggs to hatch them; brood.

to fit, rest, or hang, as a garment: The jacket sits well on your shoulders.

to occupy a place or have a seat in an official assembly or in an official capacity, as a legislator, judge, or bishop.

to be convened or in session, as an assembly.

to act as a baby-sitter.

(of wind) to blow from the indicated direction: The wind sits in the west tonight.

to be accepted or considered in the way indicated: Something about his looks just didn't sit right with me.

Informal. to be acceptable to the stomach: Something I ate for breakfast didn't sit too well.

Chiefly British. to take a test or examination: I’m studying now, and I plan to sit in June.

verb (used with object), sat or (Archaic) sate; sat or (Archaic) sit·ten; sit·ting.

to cause to sit; seat (often followed by down): Sit yourself down. He sat me near him.

to sit astride or keep one's seat on (a horse or other animal): She sits her horse gracefully.

to provide seating accommodations or seating room for; seat: Our dining-room table only sits six people.

Informal. to serve as baby-sitter for: A neighbor can sit the children while you go out.

Chiefly British. to take (a test or examination): She finally received permission to sit the exam at a later date.

Verb Phrases

sit down,

to take a seat.
to descend to a sitting position; alight.
to take up a position, as to encamp or besiege: The military forces sat down at the approaches to the city.

sit in,

to attend or take part as a visitor or temporary participant: to sit in at a bridge game; to sit in for the band's regular pianist.
to take part in a sit-in.

sit in on, to be a spectator, observer, or visitor at: to sit in on classes.

sit on/upon,

to inquire into or deliberate over: A coroner's jury was called to sit on the case.
Informal. to suppress; silence: They sat on the bad news as long as they could.
Informal. to check or rebuke; squelch: I'll sit on him if he tries to interrupt me.

sit out,

to stay to the end of: Though bored, we sat out the play.
to surpass in endurance: He sat out his tormentors.
to keep one's seat during (a dance, competition, etc.); fail to participate in: We sat out all the Latin-American numbers.

sit up,

to rise from a supine to a sitting position.
to delay the hour of retiring beyond the usual time.
to sit upright; hold oneself erect.
Informal. to become interested or astonished: We all sat up when the holiday was announced.

Origin of sit

before 900; Middle English sitten, Old English sittan; cognate with Dutch zitten, German sitzen, Old Norse sitja; akin to Gothic sitan, Latin sedēre, Greek hézesthai (base hed-); cf. set, sedate, cathedral, nest

SYNONYMS FOR sit

10 meet, assemble, convene, gather.

SEE MORE SYNONYMS FOR sit ON THESAURUS.COM

Can be confused

set sit (see usage note at set)

Usage note

See set.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for sit up (1 of 3)

sit up

verb (adverb)

to raise (oneself or another) from a recumbent to an upright or alert sitting posture

(intr) to remain out of bed and awake, esp until a late hour

(intr) informal to become suddenly interested or alertdevaluation of the dollar made the money market sit up

noun sit-up

a physical exercise in which the body is brought into a sitting position from one lying on the backAlso: trunk curl

British Dictionary definitions for sit up (2 of 3)

SIT

/ text messaging /

abbreviation for

stay in touch

British Dictionary definitions for sit up (3 of 3)

sit

/ (sɪt) /

verb sits, sitting or sat (mainly intr)

(also tr; when intr, often foll by down, in, or on) to adopt or rest in a posture in which the body is supported on the buttocks and thighs and the torso is more or less uprightto sit on a chair; sit a horse

(tr) to cause to adopt such a posture

(of an animal) to adopt or rest in a posture with the hindquarters lowered to the ground

(of a bird) to perch or roost

(of a hen or other bird) to cover eggs to hatch them; brood

to be situated or located

(of the wind) to blow from the direction specified

to adopt and maintain a posture for one's portrait to be painted, etc

to occupy or be entitled to a seat in some official capacity, as a judge, elected representative, etc

(of a deliberative body) to be convened or in session

to remain inactive or unusedhis car sat in the garage for a year

to rest or lie as specifiedthe nut was sitting so awkwardly that he couldn't turn it

(of a garment) to fit or hang as specifiedthat dress sits well on you

to weigh, rest, or lie as specifiedgreatness sits easily on him

(tr) mainly British to take (an examination)he's sitting his bar finals

(usually foll by for) mainly British to be a candidate (for a qualification)he's sitting for a BA

(intr; in combination) to look after a specified person or thing for someone elsegranny-sit

(tr) to have seating capacity for

sitting pretty informal well placed or established financially, socially, etc

sit tight

to wait patiently; bide one's time
to maintain one's position, stand, or opinion firmly

Word Origin for sit

Old English sittan; related to Old Norse sitja, Gothic sitan, Old High German sizzen, Latin sedēre to sit, Sanskrit sīdati he sits

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

Idioms and Phrases with sit up (1 of 2)

sit up

Rise to a sitting position from lying down, as in The sick child sat up and asked for a drink of water. [Early 1200s]

Stay up later than usual, as in The nurse sat up with her all night long. [Mid-1500s]

Sit with the spine erect, as in She was always telling the students to sit up. [Early 1700s]

Become suddenly alert, as in The students sat up when he brought up the test. The same sense appears in the related sit up and take notice, as in When he mentioned the arrival of a movie star, they all sat up and took notice. [Late 1800s]

Idioms and Phrases with sit up (2 of 2)

sit

In addition to the idioms beginning with sit

sit at one's feet
sit back
sit bolt upright
sit by
sit down
sit in
sit on
sit on one's hands
sit out
sit pretty
sit through
sit tight
sit up
sit well with

also see:

at a sitting

sit-up

noun

RELATED CONTENT

RELATED WORDS

Nearby words

Origin of sit-up

Definition for sit up (2 of 2)

sit

verb (used without object), sat or (Archaic) sate; sat or (Archaic) sit·ten; sit·ting.

verb (used with object), sat or (Archaic) sate; sat or (Archaic) sit·ten; sit·ting.

Verb Phrases

Origin of sit

SYNONYMS FOR sit

Can be confused

Usage note

British Dictionary definitions for sit up (1 of 3)

sit up

verb (adverb)

noun sit-up

British Dictionary definitions for sit up (2 of 3)

SIT

abbreviation for

British Dictionary definitions for sit up (3 of 3)

sit

verb sits, sitting or sat (mainly intr)

Word Origin for sit

Idioms and Phrases with sit up (1 of 2)

sit up

Idioms and Phrases with sit up (2 of 2)

sit