Grammatico rhymes with:
antico, falotico, teco, agrico, akiko, alberico, amico, angelico, antico, arico, beco, biko, canonico, carico, carrico, ceco, cherico, chirico, chriboniko, damico, decicco, delmonico, demicco, derrico, domanico, eco, economico, enrico, errico, falotico, federico, fico, frederico, grieco, gromyko, iannamico, katsuhiko, kazuhiko, leeco, lico, lodico, marsico, masahiko, monico, neco, neeco, nico, nikko, niko, orrico, pacifico, panico, peko, persico, pico, puerto-rico, reco, rico, ricoh, seaco, serpico, talarico, talerico, tallarico, tallerico, teco, toshihiko, tricarico, trico, veeco, yasuhiko, zico
Grammatico sounds like:
garamendi's, garments, gourmets, granada's, granados, grand's, grandiose, grandis, grands, granitic, grant's, grants, grantz, greenidge, grenades, greyhound's, grinds, groundhog, grounds, grummond's, grundig, grunts, guarantee's, guarantees, guaranties, guaranty's