Aven rhymes with:
chayon, dayan, hayen, himalayan, keteyian, mahan, mahon, malayan, mayhan, mcmahon, oken, pay'n, payan, rayon, saehan, skehan, tehan, uruguayan
Aven sounds like:
abiam, abney, affine, apennine, apnea, appian, aubin, avana, avena, aveni, avenue, avian, aviano, avina, avon