A thank-you note is a short letter sent to express thanks. Write a thank-you note.
It is remembered out of all proportion to the effort it takes. A thank-you note after an interview is one of the cheapest advantages anybody can give themselves.
1nounthank-you noteA short letter sent to express thanks.
“She wrote a thank-you note for every present within the week.”
thank-you note is a letter.
Practised in Manners & Etiquette