Submitted by György Chityil ... on Mon, 12/11/2017 - 21:32 Ngram Count: 1Starts with letter: YesSource: COCA Top 5000Google Ngram Count: 477300474Sense count: 13Contained in other ngrams: 77Hierarchy: Subordinating ConjunctionWh-adverbConjunctionAdverbNounPronounQuestion signal