Index rhymes with:
mondex, dudeck's, mondex, abex, albunex, alpex, ashtec's, avanex, cognex, complex, cortex, culex, dudeck's, forex, gemex, genex, ibex, immunex, inlex, koscheck's, micrografx, mondex, moulinex, ovex, pantex, patlex, proctorsilex, purex, quadrex, qualex, quanex, reflex, rolex, rorex, royex, semtex, simex, spinifex, timex, trizec's, uzbeks, vortex
Index sounds like:
imitates, immediacy, immunetech, immunities, immunomedic, immunomedics, inadequacies, inadequacy, index's, indexes, india's, indic, indica, indices, indicia, indies, indigo, indosuez, induce, induces, indus, indyk, initiates, inmate's, inmates, innuendoes, innuendos, intake, intex, intis, intuit's