Here are some English words that may be helpful for a speaking competition:
1. Pronunciation - the way words are said2. Enunciation - the clear and distinct pronunciation of words3. Articulation - the act of making speech sounds4. Fluency - the ability to speak or write in a smooth, flowing manner5. Impromptu - a speech given without preparation6. Persuasion - the act of convincing others to agree with your point of view7. Debate - a formal discussion on a particular topic8. Rhetoric - the use of language to persuade an audience9. Eloquence - the ability to speak in a way that is fluent, persuasive, and moving10. Poise - the ability to remain calm and composed while speaking in public.