thankyou
interjection
Definitions
An expression of gratitude or politeness in response to something done or given.
Example: “Thank you!” said the girl after her mom gave her a gift.
noun
Definitions
An expression of gratitude.
Example: I must offer a big thank-you to my agent for getting me this job.
(as a modifier before a noun) That expresses thanks.
Example: a thank-you letter