to be or move yourself into a sitting position, rather than lying down or leaning back; to start to pay careful attention to what is happening, being said, etc.; to not go to bed until later than usual
Oxford70% of films
to be or move yourself into a sitting position, rather than lying down or leaning back
Oxford15% of films
to start to pay careful attention to what is happening, being said, etc.
Oxford5% of films
to not go to bed until later than usual
Definitions from the Oxford Advanced Learner's Dictionary, 9th edition