Here's what rhymes with concelebrations.
                        
                        
                    
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raisins  abrasions  ravens  patience  basins  masons  hastens  havens  occasions  evasions  equations  impatience  invasions  persuasions  complaisance  labels  maidens  shamans  places  pages  tables  wages  races  ranges  traces  raises  cables  patrons  praises  fables  appraisals  awakens  braces  gauges  laces  cradles  gables  gages  maples  matrons  cases  changes  faces  stages  bases  enables  phases  phrases  stables  vases  gazes  staples  chases  glazes  hatreds  spaces  portrayals  fireplaces  paraphrases  exchanges  metastases