chaperone

1 of 2

noun

chap·​er·​one ˈsha-pə-ˌrōn 

variants or less commonly chaperon

1

: a person (such as a matron) who for propriety (see propriety sense 2) accompanies one or more young unmarried women in public or in mixed company

2

: an older person who accompanies young people at a social gathering to ensure proper behavior

broadly : one delegated to ensure proper behavior

I was a chaperone on one of my son's class trips.

3

: any of a class of proteins (such as heat shock proteins) that facilitate the proper folding of proteins by binding to and stabilizing unfolded or partially folded proteins

called also molecular chaperone

chaperone

2 of 2

verb

variants or less commonly chaperon

chaperoned; chaperoning

transitive verb

1

: escort

2

: to act as chaperone to or for

chaperone a dance

chaperoning teenagers

intransitive verb

: to act as a chaperone

Two parents chaperoned at the school dance.

chaperonage

ˈsha-pə-ˌrō-nij 

noun

Synonyms

Verb

• accompany
• attend
• companion
• company
• convoy
• escort
• see
• squire

Examples of chaperone in a Sentence

Noun

I was a chaperone on one of my son's school trips.

Verb

Two parents chaperoned the children.

My mom always chaperoned the school dances.

Recent Examples on the Web

Noun

Three witnesses were interviewed for JCPS' investigation: a JCPS employee and two parents of students who served as chaperones on the trip. —Stephanie Kuzydym, The Courier-Journal, 8 Oct. 2024

Once the chaperone realized the child was missing, she was found 15 minutes later floating facedown in the pool, reported WDTV. —Saleen Martin, USA TODAY, 7 Oct. 2024

Verb

Six Flags Over Texas now requires children under 15 to be chaperoned by someone over 21 after 4pm. —Tasha Tsiaperas, Axios, 9 Sep. 2024

At age 20, her date with a male friend was chaperoned, and her pastor father policed such interactions with vigilance. —Marc Ramirez, USA TODAY, 13 Aug. 2024

Word History

Etymology

Noun and Verb

French chaperon, literally, hood, from Middle French, head covering, from chape

First Known Use

Noun

1720, in the meaning defined at sense 1

Verb

1802, in the meaning defined at transitive sense 1

Phrases Containing chaperone

• molecular chaperone

Kids Definition

chaperone

1 of 2 noun

chap·​er·​one

variants or chaperon

ˈshap-ə-ˌrōn 

: a person who goes with and is responsible for a young woman or a group of young people (as at a dance)

chaperone

2 of 2 verb

variants or chaperon

chaperoned; chaperoning

: to act or go with as a chaperone

Etymology

Noun

from French chaperon "chaperone," literally, "hood," derived from early French chape "cape," from Latin cappa "head covering, cloak" — related to cape entry 2, chapel

Medical Definition

chaperone

noun

chap·​er·​one ˈshap-ə-ˌrōn 

variants or chaperone protein

: any of a class of proteins (such as heat shock proteins and chaperonins) that facilitate the proper folding of proteins by binding to and stabilizing unfolded or partially folded proteins

As the proteins are produced, molecules called chaperones fold them into the three-dimensional form they are supposed to take.

—Andres M. Lozano et al., Scientific American,

called also molecular chaperone