sit up

Meaning

Verb

1. To assume a sitting position from a position lying down.
2. To sit erect.
3. To show sudden interest or surprise.
4. To bounce, especially to a comfortable height.
5. To not go to bed (notionally remaining in a sitting position).
6. For a young lady to open her house for several successive nights for any visitors who wish to pay their respects.

Noun

Alternative spelling of sit-up

Synonyms

stay up

wake up

sit down

sit upright

erect

guard

💂

invigilate

monitor

overlook

pay attention

probate

proctor

prove

pry

raise

arise

stay

stop up

superintend

supervise

uprise

watch over

tip up

police

👮

be sleepless

surveil

sit

🪑

awake

control

cover

Etymology

Inherited from Middle English: upsitten

In summary

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