Question

homophones are words th have exactly the same meaning have completely opposite meanings sound the same but have different meanings are spelled the same but are pronounced differently

Explanation:

To determine the correct definition of homophones, we analyze each option:

• "have exactly the same meaning" describes synonyms.
• "have completely opposite meanings" describes antonyms.
• "sound the same but have different meanings" matches the definition of homophones (e.g., "their", "there", "they're").
• "are spelled the same but are pronounced differently" describes heteronyms (or homographs with different pronunciations).

Answer:

sound the same but have different meanings