Synonyms:
- amassing evidence,
- appraisal,
- assessment,
- assortment,
- bolting,
- categorization,
- clarification,
- classification,
- close inquiry,
- colature,
- culling,
- department of investigation,
- destructive distillation,
- detection,
- detective work,
- distillation,
- edulcoration,
- elution,
- elutriation,
- essentialization,
- evaluation,
- exhaustive study,
- extraction,
- factoring,
- filtering,
- filtration,
- gauging,
- gradation,
- grouping,
- hearing,
- identification,
- indagation,
- investigation,
- investigative bureau,
- leaching,
- legislative investigation,
- legwork,
- lixiviation,
- percolation,
- perscrutation,
- placement,
- probe,
- purification,
- ranking,
- refinement,
- research,
- riddling,
- screening,
- selection,
- separation,
- sieving,
- sifting out,
- sleuthing,
- sorting,
- sorting out,
- spiritualization,
- straining,
- sublimation,
- subordination,
- taxonomy,
- triage,
- weighing,
- winnowing,
- witch-hunt