"proper diction" is correct and usable in written English.
You can use it when referring to language that is appropriate for a particular context, situation, or audience, especially when applied to formal speech or writing. For example: "Mastering proper diction is a key part of effective public speaking."
The students seem to do a lot more public speaking, with teachers working hard to get them to use full sentences and proper diction.
He describes his taste in sports, speech and attire as, perhaps, aspirational, but adds, with a wink, "it may simply be that I like tennis, proper diction and formal wear".
In later classical criticism, the Roman poet Horace maintained that to retain its unity, a work of art must be consistent in every aspect: the subject or theme must be dealt with in the proper diction, metre, form, and tone.
WHEN Dr. Simmons has ruffled feathers, especially among students, it has usually been because of her insistence that they use proper diction and scrap the "likes" and "ums" that have been part of their lexicon since childhood.
"The phrase 'made from sugar' may seem simple enough, but it has spawned an epic battle among the parties over proper diction and syntax," the judge overseeing the case, Gene E. K. Pratter, wrote in an opinion last month.
With a good Internet connection and proper diction, Siri answers correctly 9 times out of 10.
Jason Priestley, the slouching star of "Beverly Hills 90210," is not best known for his mastery of proper English diction.
He's an Englishman of unspecified age, and a writer, although whether nascent or failed we aren't told; we can glean, from his diction, a proper (that is to say, British-public-school) education, which at that time signalled at the least a middle-class background.
Express yourself with proper grammar and good diction.
For the qualitative method, the experts were asked to assess the instrument based on correct grammar usage, choice of appropriate diction, appropriate sequencing of items, and proper weighting of items, and also to provide feedback.
Be respectful and use proper grammar, spelling, especially in texting, if applicable), and diction.
