English version

chaperone

From Longman Dictionary of Contemporary Englishchaperonechap‧e‧rone1, chaperon /ˈʃæpərəʊn $ -roʊn/ noun [countable]  1 IN CHARGE OFan older woman in the past who went out with a young unmarried woman on social occasions and was responsible for her behaviour2 American EnglishIN CHARGE OF someone, usually a parent or teacher, who is responsible for young people on social occasions Three parents went on the school ski trip as chaperones.
Examples from the Corpus
chaperoneHer duties as a chaperone had become less evident now that she was accustomed to Paul and had been spoken to kindly.Surely you don't want a chaperone?Anna Zborowska posed for two nude paintings, presumably painted in her rooms at the Sunny Hotel with Lunia acting as chaperone.Aunt Millie went with her as chaperone, and kept her secret.Thus, while Meh'Lindi padded in pursuit with her mute chaperones, Jaq was also tracking the Harlequin man.At different times Polanco, Garza, Santana and Marmalejo were assigned to these buses as drivers or chaperones.Margarett snaps Miss Sheldon, chaperone of the Florentine School, and two schoolmates lounging on deck chairs.The volunteers may go with chaperones anywhere they want within a 25-mile radius of the center.
chaperonechaperone2, chaperon verb [transitive]  LOOK AFTER somebodyto go somewhere with someone as a chaperone→ See Verb table
Examples from the Corpus
chaperoneUnfortunately I was working with All Saints so my mum did the chaperoning bit, taking her to Pinewood and back.For a moment Peng Yu-wei hesitated, his duty to chaperone the children conflicting with the explicit command of the young master.They gave mice infusions of a blood-clotting factor and antibodies engineered to chaperone the factor to molecular targets in tumor vessels.
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Verb table
chaperone
Simple Form
Present
I, you, we, theychaperone
he, she, itchaperones
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Past
I, you, he, she, it, we, theychaperoned
Present perfect
I, you, we, theyhave chaperoned
he, she, ithas chaperoned
Past perfect
I, you, he, she, it, we, theyhad chaperoned
Future
I, you, he, she, it, we, theywill chaperone
Future perfect
I, you, he, she, it, we, theywill have chaperoned
> View Less
Continuous Form
Present
Iam chaperoning
he, she, itis chaperoning
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you, we, theyare chaperoning
Past
I, he, she, itwas chaperoning
you, we, theywere chaperoning
Present perfect
I, you, we, theyhave been chaperoning
he, she, ithas been chaperoning
Past perfect
I, you, he, she, it, we, theyhad been chaperoning
Future
I, you, he, she, it, we, theywill be chaperoning
Future perfect
I, you, he, she, it, we, theywill have been chaperoning
> View Less