疑ぎ問もん詞しぎもんしMeanings1nouninterrogative word; question wordgrammarA grammatical term for words like 何, 誰, どこ, いつ, なぜ, and どう that are used to form questions.日本にほん語ごの疑ぎ問もん詞しには「何なに」「誰だれ」「どこ」などがある。Japanese interrogative words include 何 (what), 誰 (who), どこ (where), and others.