Renegotiations rhymes with:
negotiations, association's, negotiations, association's, depreciations, negotiations, abbreviations, affiliations, appropriations, association's, associations, aviation's, creations, denunciations, depreciations, deviations, expropriations, humiliations, miscreations, negotiations, pronunciations, radiation's, reconciliations, variations
Renegotiations sounds like:
reinstating, reinstituting, remingtons, renegotiating, rhinestones