Recommendation rhymes with:
commendation, commendation, fundacion, inundation, commendation, foundation, fundacion, inundation, accommodation, backwardation, commendation, consolidation, degradation, depredation, fluoridation, foundation, fundacion, gradation, intimidation, inundation, invalidation, liquidation, oxidation, predation, retardation, sedation, trepidation, validation
Recommendation sounds like:
ragunathan, recantation, recognition, recondition, reexamination, regimentation, resignation