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
simpleness, purity, homogeneity, elimination, sifting
, purification, simple, uniform, of a piece, homogeneous, single, pure, sheer, neat, unmixed, unmingled, unblended, uncombined, uncompounded, elementary, undecomposed, unadulterated, unsophisticated, unalloyed, untinged, unfortified, pur et simple, incomplex, free from, exempt from, exclusive, simple, only.
inquiry, request, search, research, quest, pursuit, examination, review, scrutiny, investigation, indagation, perquisition, perscrutation, pervestigation, inquest, inquisition, exploration, exploitation, ventilation, sifting
, calculation, analysis, dissection, resolution, induction, Baconian method, strict inquiry, close inquiry, searching inquiry, exhaustive inquiry, narrow search, strict search, study, scire facias, ad referendum, trial, questioning, interrogation, interrogatory, interpellation, challenge, examination, cross-examination, catechism, feeler, Socratic method, zetetic philosophy, leading question, discussion, reconnoitering, reconnaissance, prying, espionage, espionnage, domiciliary visit, peep behind the curtain, lantern of Diogenes, question, query, problem, desideratum, point to be solved, porism, subject of inquiry, field of inquiry, subject of controversy, point in dispute, matter in dispute, moot point, issue, question at issue, bone of contention, plain question, fair question, open question, enigma, knotty point, quodlibet, threshold of an inquiry, inquirer, investigator, inquisitor, inspector, querist, examiner, catechist, scrutator scrutineer scrutinizer, analyst, quidnunc, inquiry, inquisitive, requisitive, requisitory, catechetical, inquisitorial, analytic, in search of, in quest of, on the lookout for, interrogative, zetetic, all searching, undetermined, untried, undecided, in question, in dispute, in issue, in course of inquiry, under discussion, under consideration, under investigation, sub judice, moot, proposed, doubtful, quaere?, what?, why?, wherefore?, whence?, whither?, where?, how comes it?, how happens it?, how is it?, what is the reason?, what's the matter?, nicht wahr?, what's in the wind?, what on earth?, when?, who?.