Which of these is the correct spelling of a word referring to a set of questions devised for the purposes of a survey or statistical study?

The proper spelling here is "questionnaire," and the most common misspellings of this word are questionaire and questionnair. An example of this term used in a sentence is: "I am asking them through a very detailed questionnaire to survey all sites in their areas."

Asked by Rachel Bortles · Last updated 4 years ago · 42.1K views · SOURCE