Definitions

1. interjection

an expression of surprise, shock, or anger, similar to ‘good grief’ or ‘good heavens’

“She exclaimed ‘Mordieu!’ when she saw the news.”

2. exclamation

a strong expression of emotion, often used to express surprise or shock

“He let out a loud ‘Mordieu!’ as he heard the news.”

3. noun

an expression of surprise or shock

“His ‘mordieu’ was audible from across the room.”