Submitted by Anonymous (not verified) on Thu, 05/09/2019 - 05:46 Lemma: trepanNgram Count: 1Starts with letter: YesGoogle Ngram Count: 553Sense count: 5Contained in other ngrams: 0Hierarchy: PluralThird PersonSingularThird person singular simple presentPlural NounForms: trepannedtrepanningIssue: 0Forms Count: 2