access, acuity, acumen, acupunctuation, acupuncture, acuteness, admission, apperception, astuteness, bore, boring, broach, cleverness, cogency, critical discernment, decoction, diffusion, discernment, discrimination, drill hole, embedment, empiercement, entrance, entree, entry, farseeingness, farsightedness, fixing, flair, foresight, foresightedness, goring, graft, grafting, imbuement, impaction, impactment, impalement, implantation, import, importation, importing, impregnation, incision, incisiveness, income, incoming, infiltration, infixion, infusion, ingoing, ingress, ingression, injection, inoculation, input, inroad, insertion, insight, insinuation, instillation, instillment, intake, intelligence, interjection, interpenetration, interpolation, introduction, introgression, intromission, intrusion, judgment, keenness, lancing, leakage, longheadedness, longsightedness, marination, overrunning, overspreading, overswarming, penetrating, perception, perceptiveness, percipience, percolation, perforation, perfusion, permeation, perspicaciousness, perspicacity, perspicuity, perspicuousness, pervasion, piercing, pricking, providence, punching, puncture, puncturing, quick-wittedness, reception, sagaciousness, sagacity, saturation, seepage, sensibility, sensitivity, sentience, shrewdness, skewering, soaking, steeping, suffusion, terebration, tessellation, transfixation, transfixion, transforation, transfusion, transplant, transplantation, trenchancy, trepanning, trephining, understanding, wit