A function word used to introduce an interrogative clause, i.e.
1Collect your senses, think well over what you say, and answer each question word for word.
2It was Mr. Steel who stood at Rachel's elbow, repeating his question word for word; but he did not repeat it in the same tone.
3When I too questioned words, and from a maze
4A perceptible current, a questioning word, the turn of a paddle would have set us right.
5Again and again Lechner had questioned her and written all the questions word for word in his record of proceedings.