Jillion rhymes with:
billion, brazilian, castrillon, civilian, crocodilian, dillion, filion, fillion, hillian, killian, killion, mcmillian, mcmillion, million, multibillion, multimillion, octillion, papillion, pavilion, pavillion, pillion, quillian, reptilian, stillion, trillion, vaudevillian, vermilion, vermillion, zillion
Jillion sounds like:
jackelyn, jacklin, jaclyn, jacqueline, jacquelyn, jaglom, jelen, jessalynn, jillian, jocelin, joceline, jocelyn, jocelyne, jocylan, jolene, jolin, josceline, joscelyn, joscelyne, josleyn, joslin, joslyn, josselyn, joulwan, joycelyn, juhlin, julian, juliana, juliann, julianne, juliano, julien, julin, julina, juline