Corn Flour what is it?

I found a recipe for glazed Onions in cider and it calls for corn flour. Being a new cook due to my retirement while my wife still works, I have been trying what I call virtual cooking and trying new recipes that I find on the internet. Please inform me if corn flour is corn meal or corn starch or something entirely different. Oh, if you have any other suggestions for a male who is 61 and starting to cook please pass them along. I really don't what to throw flour on my face as I serve a frozen pizza saying what a hard day I have had, Lover

Cornstarch is cornflour in the U.K. Does the recipe call for cornflour to be stirred with a cold liquid then added to the recipe to thicken it? If so, it's definitely cornstarch. If not, please give some recipe context so we can figure it out.

I believe you have hit the nail on the head. You are to add the corn flour to water and then add it to the hot liquid. It does not call it a thickener but that is what is seems to be. Thanks

I believe you have hit the nail on the head. You are to add the corn flour to water and then add it to the hot liquid. It does not call it a thickener but that is what is seems to be. Thanks