Phrase guide

sit up

noun · verb · 9 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

Alternative spelling of sit-up.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To assume a sitting position from a position lying down.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive

Examples

  • Despite being cancer-ridden, Lorin sat up to greet the visitors.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

verb

Meaning 3

To sit erect.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive

Examples

  • Sit up straight, mister!

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To show sudden interest or surprise.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive

Examples

  • He sat up when we mentioned the increased pay package.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To bounce, especially to a comfortable height.

Definition source: English Wiktionary via Wiktextract

Topics: hobbies, lifestyle, sports

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

verb

Meaning 6

To not go to bed (notionally remaining in a sitting position).

Definition source: English Wiktionary via Wiktextract

Examples

  • I sat up all night waiting for her to come home.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

verb

Meaning 7

For a young lady to open her house for several successive nights for any visitors who wish to pay their respects.

Definition source: English Wiktionary via Wiktextract

Usage: India, historical

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

verb

Meaning 8

not go to bed

Definition source: Princeton WordNet 3.0

Examples

  • Don't stay up so late--you have to go to work tomorrow
  • We sat up all night to watch the election

Meaning relationships

Synonyms: stay up

Antonyms: none provided

Broader terms: wake

9

verb

Meaning 9

change to an upright sitting position

Definition source: Princeton WordNet 3.0

Examples

  • He sat up in bed

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: change posture

History

Etymology

From Middle English upsitten (“to sit up”).

Across languages

Translations

24 source translations are retained for this English entry.

  • Catalan: incorporar-se — to rise to a sitting position
  • Finnish: nousta istumaan — to rise to a sitting position
  • German: sich aufsetzen — to rise to a sitting position
  • Gothic: 𐌿𐍃𐍃𐌹𐍄𐌰𐌽 (ussitan) — to rise to a sitting position
  • Greek: ανακάθομαι (anakáthomai) — to rise to a sitting position
  • Māori: noho tū — to rise to a sitting position
  • Old English: āsittan — to rise to a sitting position
  • Spanish: sentarse — to rise to a sitting position
  • Vietnamese: ngồi dậy — to rise to a sitting position
  • Welsh: eistedd i fyny — to rise to a sitting position
  • Bulgarian: седя изправен (sedja izpraven) — to sit erect
  • Finnish: istua suorassa — to sit erect
  • Finnish: istua selkä suorana — to sit erect
  • Māori: noho tū — to sit erect
  • Old English: āsittan — to sit erect
  • Vietnamese: ngồi thẳng — to sit erect
  • Finnish: havahtua — to show sudden interest
  • Vietnamese: sáng mắt — to show sudden interest
  • Finnish: pomppia — sports: to bounce
  • German: hochschlagen — sports: to bounce
  • Bulgarian: седя до късно (sedja do kǎsno) — to not go to bed
  • Finnish: valvoa — to not go to bed
  • Finnish: olla ylhäällä — to not go to bed
  • Welsh: eistedd i fyny — to not go to bed