* Speak sternly: This implies a serious and firm tone, often used to reprimand or command. It emphasizes authority and a lack of tolerance for wrongdoing.
* Speak sharply: This suggests a sudden and forceful tone, almost like a snap. It focuses more on the abruptness and unexpectedness of the delivery, rather than the severity of the message itself.
Examples:
* Sternly: "I told you not to do that. I will not tolerate it again." (Emphasis on authority and discipline)
* Sharply: "Don't interrupt me!" (Emphasis on abruptness and forcefulness)
In summary, while both phrases denote a firm tone, "sternly" emphasizes authority and seriousness, while "sharply" emphasizes suddenness and forcefulness.