Alcon rhymes with:
caan, con, conn, kahn, khan, kohn, kon, mcconn, nithuekan, ocon, pecan
Alcon sounds like:
alagem, alagna, alaskamen, alaskan, alcan, alchemy, alcina, aleichem, alexine, algamaa, algemene, algom, algoma, align, alison, alkema, alkene, alleghany, allegheny, allgemeine, allison, allusion, allyson, alzena, alzene, alzona