Rhetoric

n. study of the effective use of language; art of speaking and writing effectively; oratory, study of language as a means of persuasion; use of bombastic language, use of unnecessarily florid language

Rhetoric (from Greek , rhêtôr, orator, teacher) is generally understood to be the art or technique of persuasion through the use of oral, visual, or written language; however, this definition of rhetoric has expanded greatly since rhetoric emerged as a field of study in universities. In this sense, there is a divide between classical rhetoric (with the aforementioned definition) and contemporary practices of rhetoric which include the analysis of written and visual texts.
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Noun
1. using language effectively to please or persuade
(hypernym) expressive style, style
(part-meronym) rhetorical device
2. high flown style; excessive use of verbal ornamentation
(synonym) grandiosity, magniloquence, grandiloquence
(hypernym) expressive style, style
(hyponym) flourish
3. loud and confused and empty talk; "mere rhetoric"
(synonym) palaver, hot air, empty words, empty talk
(hypernym) nonsense, bunk, nonsensicality, meaninglessness, hokum
4. study of the technique and rules for using language effectively (especially in public speaking)
(hypernym) literary study
(class) tropical

(n.)
The art of composition; especially, elegant composition in prose.
  

(n.)
Oratory; the art of speaking with propriety, elegance, and force.
  

(n.)
Hence, artificial eloquence; fine language or declamation without conviction or earnest feeling.
  

(n.)
Fig. : The power of persuasion or attraction; that which allures or charms.
  

Synonyms and related words:
Barnumism, affectation, articulateness, bedizenment, big talk, bluster, bombast, choice of words, command of language, command of words, composition, convolution, debating, declamation, demagogism, dialect, diction, effective style, elocution, eloquence, eloquent tongue, exaggeration, expression, expression of ideas, expressiveness, facundity, fashion, feeling for words, felicitousness, felicity, flashiness, flatulence, flatulency, forensics, form of speech, formulation, fulsomeness, fustian, garishness, gasconade, gaudiness, gift of expression, gift of gab, glibness, grace of expression, grammar, grandiloquence, grandioseness, grandiosity, graphicness, high-flown diction, highfalutin, homiletics, hot air, idiom, inflatedness, inflation, language, lecturing, lexiphanicism, literary style, locution, loftiness, long-windedness, luridness, magniloquence, manner, manner of speaking, mannerism, meaningfulness, mere rhetoric, meretriciousness, mode, mode of expression, oratory, orotundity, ostentation, ostentatious complexity, parlance, peculiarity, personal style, phrase, phraseology, phrasing, platform oratory, platitudinous ponderosity, polysyllabic profundity, pomposity, pompous prolixity, pompousness, pontification, pretension, pretentiousness, prolixity, prose run mad, public speaking, puffery, pyrotechnics, rabble-rousing, rant, rhapsody, rhetoricalness, rodomontade, sensationalism, sense of language, sententiousness, sesquipedality, showiness, silver tongue, slickness, smoothness, speaking, speech, speechcraft, speechification, speeching, speechmaking, stiltedness, strain, stump speaking, style, stylistic analysis, stylistics, swelling utterance, swollen phrase, swollenness, talk, tall talk, the grand style, the plain style, the sublime, tortuosity, tortuousness, trick, tumidity, tumidness, turgescence, turgidity, usage, use of words, usus loquendi, vein, verbiage, verbosity, vividness, way, windiness, wordage, wordcraft, wordiness, wording