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

And the whole world turns in darker, darker directions, because of similar decisions made in Germany and other countries. —David Frum, The Atlantic, 10 June 2026

The political arm of labor groups, the Missouri Workers Center and Stand Up KC, turned in more than 4,500 signatures to try to force a public vote on the stadium proposal. —Kacen Bayless, Kansas City Star, 10 June 2026

Right-hander David Morgan struck out four over 1⅔ shutout frames, left-hander Adrián Morejón struck out three over 1⅓ scoreless innings and right-handers Jason Adam and Mason Miller each turned in a scoreless frame. —Jeff Sanders, San Diego Union-Tribune, 10 June 2026

One of today’s most in-demand actresses, Ackie is coming off an Independent Spirit Award win for her supporting turn in Sorry, Baby, the A24 drama from Eva Victor. —Justin Kroll, Deadline, 9 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