Rattle rhymes with:
brattle, prattle, battle, brattle, cattle, chattel, embattle, prattle, seattle, tattle, that'll
Rattle sounds like:
radel, radell, radella, radial, radially, radle, radley, raithel, rathel, ratley, rattatouille, readily, reddell, redel, redell, redial, redley, reidel, retail, retell, retool, riddell, riddle, ridell, ridley, riedel, riedl, rittle, ritual, rodale, rodela, rodell, rodwell, roedel, roedl, rotella, rothwell, rotolo, rototill, ruddell, ruddle, rudel, rudell, rudelle, rudely, ruotolo, rutile, rutley, ruttle, rydell