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command of language
THESAURUS
command of language
affectation, articulateness, command of words, effective style, eloquence, eloquent tongue, exaggeration, expression, expression of ideas, expressiveness, facundity, fashion, feeling for words, felicitousness, felicity, form of speech, gift of expression, gift of gab, glibness, grace of expression, grandiloquence, graphicness, inflation, literary style, manner, manner of speaking, mannerism, meaningfulness, mode, mode of expression, oratory, peculiarity, personal style, rhetoric, sense of language, silver tongue, slickness, smoothness, strain, style, stylistic analysis, stylistics, the grand style, the plain style, the sublime, trick, vein, vividness, wayROGET THESAURUS
command of language
Style
N style, diction, phraseology, wording, manner, strain, composition, mode of expression, choice of words, mode of speech, literary power, ready pen, pen of a ready writer, command of language, authorship, la morgue litteraire, le style c'est de l'homme, style is the dress of thoughts, Various Qualities of Style.Vigor
N vigor, power, force, boldness, raciness, intellectual, force, spirit, point, antithesis, piquance, piquancy, verve, glow, fire, warmth, strong language, gravity, sententiousness, elevation, loftiness, sublimity, eloquence, command of words, command of language, vigorous, nervous, powerful, forcible, trenchant, incisive, impressive, sensational, spirited, lively, glowing, sparkling, racy, bold, slashing, pungent, piquant, full of point, pointed, pithy, antithetical, sententious, lofty, elevated, sublime, eloquent, vehement, petulant, impassioned, poetic, in glowing terms, in good set terms, in no measured terms, thoughts that breath and words that burn.Speech
N speech, faculty of speech, locution, talk, parlance, verbal intercourse, prolation, oral communication, word of mouth, parole, palaver, prattle, effusion, oration, recitation, delivery, say, speech, lecture, harangue, sermon, tirade, formal speech, peroration, speechifying, soliloquy, allocution, conversation, salutatory : screed: valedictory, oratory, elocution, eloquence, rhetoric, declamation, grandiloquence, multiloquence, burst of eloquence, facundity, flow of words, command of words, command of language, copia verborum, power of speech, gift of the gab, usus loquendi, speaker, spokesman, prolocutor, interlocutor, mouthpiece, Hermes, orator, oratrix, oratress, Demosthenes, Cicero, rhetorician, stump orator, platform orator, speechmaker, patterer, improvisatore, speaking, spoken, oral, lingual, phonetic, not written, unwritten, outspoken, eloquent, elocutionary, oratorical, rhetorical, declamatory, grandiloquent, talkative, Ciceronian, nuncupative, Tullian, orally, by word of mouth, viva voce, from the lips of, quoth he, said he, action is eloquence, pour the full tide of eloquence along, she speaks poignards and every word stabs, speech is but broken light upon the depth of the u, to try thy eloquence now 'tis time.For further exploring for "command of language" in Webster Dictionary Online