Submitted by Anonymous (not verified) on Thu, 05/09/2019 - 00:37 Lemma: jackhammerNgram Count: 1Starts with letter: YesGoogle Ngram Count: 12637Sense count: 5Contained in other ngrams: 0Hierarchy: PluralThird PersonSingularThird person singular simple presentPlural NounIssue: 0Forms Count: 0