Common fix high
Wrong questionaire
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i · WhyTwo lines, no filler
From French — double n, then '-aire'. English borrowed the French spelling whole.
ii · Brew tipKeep this one
Question + naire (French suffix). Two n's because French.
iii · Read deeperFull entry available
60-second read
Questionaire vs. Questionnaire
Double N.
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iv · References Cross-check