Amnio rhymes with:
aluminio, antonio, arsenio, cattaneo, colantonio, cotroneo, cuneo, dantonio, denio, diantonio, eugenio, hermenio, kunio, marcantonio, messineo, mineo, petronio, pineo, pinneo, pomponio, strenio, tarquinio, tsuneo, uneo, wainio
Amnio sounds like:
ahmann, ahn, ahonen, ahwahnee, aim, aiman, aime, aimee, aimone, aine, am, aman, amana, amann, amano, amaya, ame, ameen, amen, amey, ami, amie, amin, amino, amman, ammann, ammeen, ammo, ammon, ammonia, ammonium, amo, amon, amway, amy, an, ana, anaheim, anania, anaya, ane, anemia, anemone, anew, ann, anna, annan, anne, annen, annie, anno, annoy, annum, anny, ano, anomie, anona, anway, any, anyhow, anyon, anyone, anyway, aon, aoun, aoyama, auen, auman, aumann, aune, awan, ayn, ayon