The phrasal verb "turn in" enjoys versatility and sees usage across both informal and formal contexts, though it is more frequently encountered in informal settings. In common usage, "turn in" means to go to bed or retire for the night. For example, one might say, "I’m going to turn in early tonight." In a more formal or professional context, "turn in" is often used to indicate the submission of work or assignments, as in "Please turn in your reports by Friday." Additionally, "turn in" can mean to submit or surrender to authorities, commonly used in situations involving legal or police contexts, such as "He decided to turn himself in to the police." Overall, the specific meaning of "turn in" can shift significantly based on the context, making it a versatile component of English speech and writing.
B1
PreIntermediate
1. To submit a piece of work, such as an assignment or report, to someone in authority.
Students must turn in their assignments by Friday.
He turned in the report to his manager on Monday.
2. To report or deliver someone to authorities, often used in the context of surrendering offenders.
The fugitive decided to turn himself in after realizing the hopelessness of his situation.
After weeks of evading capture, the thief turned himself in to the local police.
3. To go to bed or retire for the night.
After a long day at work, she decided to turn in early.
He usually turns in around 10 PM during the workweek.