PLENITUDE Meaning of PLENITUDE in English [plen.i.tude] n [ME plenitude, fr. MF or L; MF, fr. L plenitudo, fr. plenus] (15c) 1: the quality or state of being full: completeness 2: a great sufficiency: abundance Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012