fluency

n. quality of being fluent, ability to speak and write easily, eloquence, articulateness; gracefulness; fluidness

Fluency is the property of a person or of a system that delivers information quickly and with expertise. Fluency indicates a very good information processing speed, i.e. very low average time between successively generated messages.
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Noun
1. powerful and effective language
(synonym) eloquence
(hypernym) expressive style, style
2. skillfulness in speaking or writing
(hypernym) skillfulness
3. the quality of being facile in speech and writing
(synonym) volubility, articulateness
(hypernym) communicativeness

fluence
لساني, زبان آوري, گويائي, رواني, بہاؤ, طراري, صفائي, طلاقت, چرب زباني

n.
رواني

Synonyms and related words:
Atticism, abundance, affluence, afflux, affluxion, amplitude, appropriateness, articulateness, big mouth, candor, chasteness, chastity, chylifaction, chylification, clarity, classicalism, classicism, clearness, cloud of words, comeliness, command, communicativeness, concourse, confluence, conflux, control, conversableness, copiousness, correctness, course, crosscurrent, current, defluxion, diffuseness, diffusion, diffusiveness, dignity, directness, discrimination, distinction, downflow, downpour, drift, driftage, ease, effortlessness, effusion, effusiveness, elegance, elegancy, eloquence, extravagance, exuberance, facility, fecundity, felicitousness, felicity, fertility, finish, fittingness, flow, flow of words, flowing, flowing periods, flowing tongue, fluent tongue, fluidity, fluidness, flux, flux de bouche, flux de paroles, flux of words, fluxility, fluxion, formlessness, frankness, garrulity, garrulousness, gassiness, gift of gab, glibness, good taste, grace, gracefulness, gracility, gregariousness, gush, gushiness, gushing, inflow, juiciness, lactation, lactescence, limpidity, liquefaction, liquidness, logorrhea, long-windedness, loose tongue, loquaciousness, loquacity, lucidity, macrology, milkiness, mill run, millrace, moisture, naturalness, neatness, onrush, onward course, openness, outflow, outpour, overflow, palilogy, pellucidity, perspicuity, plainness, pleonasm, poetry, polish, prodigality, productivity, profuseness, profusion, prolificacy, prolificity, prolixity, propriety, purity, race, rampancy, rankness, redundancy, refinement, reiteration, reiterativeness, repetition for effect, repetitiveness, restraint, rheuminess, run, rush, sappiness, seemliness, serosity, set, simplicity, slickness, slush, smoothness, sociability, spate, spate of words, straightforwardness, stream, succulence, superabundance, superfluity, superflux, suppuration, surge, talkativeness, taste, tastefulness, tautology, teemingness, terseness, tide, tirade, trend, unaffectedness, undercurrent, undertow, verbosity, volubility, water flow, wateriness, windiness