1
[ verb ] prevent from going to bed at night

Synonyms

keep_up stay_up

Examples

"The anticipation of the trip kept the children up all night" "I kept myself up all night studying for the exam"

Used in print

(Arthur Miller, "The Prophecy," in The Best...)

She enjoyed great parties when she would sit_up talking and dancing and drinking all night , but it always seemed to her that being alone , especially alone in her house , was the realest part of life .

(Robert Heinlein, Stranger in a Strange Land....)

Before midnight he speeded his heart , resumed normal breathing , ran_down his check_list , uncurled and sat_up .

Related terms

wake

2
[ verb ] not go to bed

Synonyms

stay_up

Examples

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

Related terms

wake

3
[ verb ] change to an upright sitting position

Examples

"He sat up in bed"

Related terms

change_posture sit-up

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