Submitted by Anonymous (not verified) on Thu, 10/26/2017 - 17:01 Lemma: hardenNgram Count: 1Wordnet ID: 61989Starts with letter: YesIndefinite Article: aGoogle Ngram Count: 1884058Sense count: 7Contained in other ngrams: 18Hierarchy: AdjectivePast ParticipleForms: hardeninghardensForms Count: 2