Is it "Acknowledgments" or "Acknowledgements"? Hello there, hope you have a nice day! I've had "Acknowledgements" marked incorrect in my essay by the auto-correct function. But I found it is written in that way in a book I was reading earlier (The Language of Evaluation by J. R. Martin and P. R. R. White) and I tried to search some other English references... some of them are written as "Acknowledgements", while some are "Acknowledgments". Are both correct? Thanks in advance for any help.