Zinnias rhymes with:
albania's, armenia's, bosnia's, bosnias, chechnya's, corneas, eugenia's, hibernia's, lithuania's, lusitania's, lusitanias, petunias, romania's, tanzania's
Zinnias sounds like:
zamzow, zanca, zang, zanghi, zaniewski, zank, zanuck, zanussi, zemanek, zemecki, zemeckis, zemin's, zemke, zenas, zenchu, zeneca, zeneca's, zeng, zenica, zenk, zens, zenz, zhang, zhejiang, zheng, zhengzhou, ziemke, zigzagging, zinc, zinck, zines, zing, zinga, zingg, zink, zinke, zins, ziomek, zions, ziyang, zmijewski, zones, zoning, zooming, zooms, zungu, zuniga