Avena rhymes with:
alena, dana, eirena, elaina, guenna, illina, irena, llerena, madalena, maina, marlena, morena, payna, raina, reyna, robaina, traina, urena, verena
Avena sounds like:
abiam, abney, affine, apennine, apnea, appian, aubin, avana, aven, aveni, avenue, avian, aviano, avina, avon