Portions rhymes with:
proportions, abortions, contortions, distortions, proportions, abortions, contortions, distortions, martians, proportions
Portions sounds like:
parading, paradyne's, pardoning, pardons, parting, partitioning, partitions, partying, pertaining, pertains, pirating, porting, predominance, preteens, pretense, pretenses, prodding, protein's, proteinaceous, proteins, proton's, protons, prudence, prudency, puritans