turn in

verb

turned in; turning in; turns in

intransitive verb

1

: to make an entrance by turning from a road or path

2

: to go to bed

turned in early

transitive verb

1

: to deliver up : hand over

turned in his badge and quit

2

a

: to inform on : betray

b

: to deliver to an authority

urged the fugitive to turn himself in

3

: to acquit oneself of : put on, produce

turned in a good performance

Synonyms of turn in

• relinquish
• render
• surrender
• deliver
• turn over

Examples of turn in in a Sentence

turned in the banned assault rifle to the police

it's almost midnight, so it's time to turn in

Recent Examples on the Web

The Spurs missed more production from De'Aaron Fox, who turned in an unremarkable performance (seven points), leaving San Antonio to lean heavily on its young core. —Alejandro Avila, FOXNews.com, 4 June 2026

Prior to this movie, Galitzine was best known for his performances in romances like Red, White & Royal Blue and The Idea of You, as well as a funny turn in the comedy Bottoms. —Tommy McArdle, PEOPLE, 3 June 2026

As of Wednesday morning, voters had turned in more than 5 million ballots, or roughly 23% of the total. —Stephen Hobbs, Sacbee.com, 3 June 2026

Parents would go through a 20- to 30-minute course, answering questions about the content, and then go in person to get their waivers signed and turned in at their local health department office. —Kate Wells, NPR, 2 June 2026

Word History

First Known Use

1535, in the meaning defined at intransitive sense 1

Kids Definition

turn in

verb

1

: to give up or hand back

turned in the art supplies when I was finished

2

: to hand over to authorities

the escaped prisoner turned himself in

3

: do entry 1 sense 1a

turned in a fine job

4

: to go to bed