What is the opposite (antonym) of "questioner"? I mean if the one who asks is called questioner, then it makes sense that the one who answers is called "answerer", but the issue that Google chrome marks it as a spelling mistake. In addition, Cambridge dictionary doesn't show such word in it.
Nevertheless I found such words on Google and Oxford dictionary, but it caused me to think about it, maybe it is a new word or maybe it's not acceptable widely or it is a matter of American versus British English. So in what word I should to use if not in "answerer" for example in the following context:
Questioner: How are you.
Answerer(?): I am OK. Thank you.