Truncation rhymes with:
oversimplification, reeducation, alliteration, alternation, brutalization, circulation, claymation, conceptualization, decimation, deterioration, excoriation, homogenization, immolation, incineration, oversimplification, playstation, reeducation, reintegration, substation, syncopation, workstation
Truncation sounds like:
terrington, tharrington, thorington, titterington, torrington, transaction, transection, transition