Sit up

noun, verb

Definitions

Noun
  1. 1
    Alternative spelling of sit-up. alt-of, alternative
Verb
  1. 1
    To assume a sitting position from a position lying down. intransitive

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

  2. 2
    not go to bed wordnet
  3. 3
    To sit erect. intransitive

    "Sit up straight, mister!"

  4. 4
    change to an upright sitting position wordnet
  5. 5
    To show sudden interest or surprise. intransitive

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

Show 3 more definitions
  1. 6
    To bounce, especially to a comfortable height.

    "And within five minutes of the change United were level. Gabriel Obertan tuned his marker inside out and delivered a cross from the right that hit Hernandez and sat up perfectly for Owen to nod home."

  2. 7
    To not go to bed (notionally remaining in a sitting position).

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

  3. 8
    For a young lady to open her house for several successive nights for any visitors who wish to pay their respects. India, historical

Etymology

Etymology 1

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

Etymology 2

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

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