A sign (") indicating a repetition which is usually put under a word, a number, or a passage that is supposed to be repeated: "Since there were so many words that were the same for each answer in the survey, Josh used ditto marks to indicate which ones were the same as the ones shown above."

Marcus filled out answers for numbers 2-4 with ditto marks:

1. Do you like ice cream? Yes
2. Do you like chocolate candy? "
3. Do you like cookies? "
4. Do you like apple crumble? "