Castellano rhymes with:
arellano, celano, arellano, atilano, catalano, celano, delano, lano, llano, milano, molano, olano, ortolano, patalano, poblano, pullano, solano, villano
Castellano sounds like:
caitlin, castellana, castellani, castellon, castillon, castleman, catalan, catalano, catalina, catalonia, catalonian, cathleen, catlin, cattlemen, chitlin, coastline, codlin