Words That Rhyme With "Plenish" :
2 syllables:
banish, Benish, Bennis, brainish, brownish, Danish, Denis, Dennis, Denys, donnish, Ennis, finish, Finnish, greenish, Greenwich, hanish, Janish, Kenneth, Kentish, kronish, manish, mannish, menace, minish, monish, moonish, premise, premiss, prentice, punish, Rhenish, Spanish, swinish, tennis, thinnish, tonish, tonnish, townish, vanish, vendace, Venice
3 syllables:
admonish, apprentice, astonish, baboonish, buffoonish, diminish, evanish, premonish, refinish, replenish