thank-you

== English == === Alternative forms === thankyou thank you === Etymology === Compound of thank +‎ you. === Noun === thank-you (plural thank-yous) An expression of gratitude. (as a modifier before a noun) That expresses thanks. a thank-you letter ==== Usage notes ==== Thank-you is a noun. The interjection thank you is always spelled as two words. ==== Translations ====