Meanings of precise diction in anglès

Ione stared straight into his eyes, speaking in a clear precise diction.

Always immaculately turned out in suit and tie, he had the exquisite manners and precise diction of a former age.

His perfectly modulated voice with its precise diction and crisp consonants sounded as tepid as a day-old cup of tea.

Hackish speech generally features extremely precise diction, careful word choice, a relatively large working vocabulary, and relatively little use of contractions or street slang.