(often followed by up) To stop sleeping

• Tom woke up in hospital.

  Tatoeba · sundown · CC BY 2.0 FR

• Tom has just woken up.

  Tatoeba · sundown · CC BY 2.0 FR

(often followed by up) To make somebody stop sleeping; to rouse from sleep

To put in motion or action; to arouse; to excite

To be excited or roused up; to be stirred up from a dormant, torpid, or inactive state; to be active

To watch, or sit up with, at night, as a dead body

To be or remain awake; not to sleep

To be alert; to keep watch

To sit up late for festive purposes; to hold a night revelrare

A period after a person's death before or after the body is buried, cremated, etc.; in some cultures accompanied by a party or collectively sorting through the deceased's personal effects

• Tom asked the person at the front desk for a 6:30 wake up call.

  Tatoeba · CK · CC BY 2.0 FR

The state of forbearing sleep, especially for solemn or festive purposes; a vigil

A yearly parish festival formerly held in commemoration of the dedication of a church. Originally, prayers were said on the evening preceding, and hymns were sung during the night, in the church; subsequently, these vigils were discontinued, and the day itself, often with succeeding days, was occupied in rural pastimes and exercises, attended by eating and drinking