Submitted by György Chityil ... on Mon, 12/11/2017 - 21:35 Ngram Count: 1Starts with letter: YesSource: COCA Top 5000Google Ngram Count: 258123466Sense count: 14Contained in other ngrams: 174Hierarchy: Subordinating ConjunctionWh-adverbConjunctionAdverbNounPronounQuestion signal