Submitted by György Chityil ... on Sun, 03/18/2018 - 21:22 Lemma: volunteerNgram Count: 1Starts with letter: YesIndefinite Article: aGoogle Ngram Count: 1347558Sense count: 1Contained in other ngrams: 1Hierarchy: Past ParticipleForms: volunteeringvolunteersForms Count: 2