Synonyms for Fluency:

n.

encode, bilingual, fluent, code switching, false beginner, fidelity, anglophone, communicative competence. gentle, fluid, balletic, supple, fluidity, ability, graceful, lithe, dainty, feline, smooth. flow, diction, fustian, monotone, gymnastics, idiolect, formulation, delivery, formality. ease of expression (noun)
facility, volubility, eloquence.
facility (noun)
simplicity, deftness, effortlessness, Dexterousness, handiness, adroitness, facility, smoothness, ease, efficiency.
fluency (noun)
eloquence, volubility, articulateness.
style (noun)
diction.

Other synonyms:

idiolect, fluidity, fluent, communicative competence, code switching, bilingual, false beginner. monotone, anglophone, fidelity, fustian, gymnastics. encode. formulation. delivery. flow. Other relevant words:
delivery, ability, formulation, idiolect, flow, bilingual, fluidity, fluent, eloquence, articulateness, anglophone, gymnastics, volubility, encode, diction.

Usage examples for fluency

  1. But that Pope read French of an ordinary cast with fluency enough, is evident from the extensive use which he made of Madame Dacier's labors on the Iliad, and still more of La Valterie's prose translation of the Iliad. – Biographical Essays by Thomas de Quincey
  2. But more were wanted, and of our friend O'Mahony's fluency there could be no doubt. – The Landleaguers by Anthony Trollope
  3. Perhaps he did not desire to avail himself of the added fluency of explanation which the Cherokee language would have afforded him, and which Corporal O'Flynn evidently understood. – The Story of Old Fort Loudon by Charles Egbert Craddock