to wait up
Third Person
waits up
Present Participle
waiting up
Past Tense
waited up
Past Participle
waited up
1
to stay awake and wait for someone to come
- The dog always waits up for its owner to come back home.
- Despite the tiredness, they waited up for their sibling's safe return.
- The family waited up in the living room for the overdue relative.
- We waited up for hours until our friends arrived from the trip.