Smartt rhymes with:
smart, k-mart, mahrt, mart, marte, smart, ahart, apart, art, bart, bossart, cart, carte, chart, dart, dartt, depart, descartes, fart, goulart, hardt, hart, harte, hartt, heart, impart, k-mart, kabart, mahrt, mart, marte, mccart, mccartt, part, parte, restart, schardt, smart, start, tart, tarte, tartt
Smartt sounds like:
sehnert, semerad, semrad, seniority, shimmered, shumard, simard, simmered, simmert, siniard, sinyard, smart, smarted, smarty, smeared, snared, sneered, snort, snorted, sunward, swinehart