Definitions from Wiktionary ( )

▸ noun:  An older person who accompanies other younger people to ensure the propriety of their behaviour, often an older woman accompanying a young woman.
▸ noun:  (biochemistry) A protein that assists the non-covalent folding/unfolding and the assembly/disassembly of other macromolecular structures, but does not occur in these structures when the latter are performing their normal biological functions.
▸ noun:  (UK, business) An employee sent by a British company to the European Union to work with a client there, to circumvent restrictions imposed after Brexit.
▸ verb:  To act as a chaperone.
▸ verb:  (UK, business) To work as a chaperone.

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