According to Google quote is '
repeat or copy out (a group of words from a text or speech), typically with an indication that one is not the original author or speaker'
can a single word qualify as a quote?
EDIT: Besides: One word sentences like "yes","no","okay".
To put the question in perspective: The question came up when my co-worker and I were trying to use this website and we were arguing if it is necessary to provide more than one word.