Sue Kline’s Grammar Hotline

Clear answers to your pressing questions about English usage.
For prompt response, send your own questions to

A selection of questions received recently:

Which is most appropriate in ending a letter: “Thank you” or “Sincerely”?
Kristine Z, Florence, MA

Answer: As the complimentary closing of a business letter, always prefer “Sincerely.”  “Thank you” can be used as the last “sentence” of a letter — appropriate when you actually have something for which to thank the reader, it cannot replace the complimentary closing.

Category: BusinessLetter