[{"term": "Synonym", "definition": "A word with a similar meaning to another word (e.g., happy and joyful)."}, {"term": "Antonym", "definition": "A word with the opposite meaning (e.g., hot and cold)."}, {"term": "Root Word", "definition": "The base part of a word that carries the core meaning."}, {"term": "Prefix", "definition": "A letter group added to the beginning of a word to change its meaning (e.g., un-, re-, pre-)."}, {"term": "Suffix", "definition": "A letter group added to the end of a word (e.g., -tion, -ly, -ful)."}, {"term": "Homophone", "definition": "Words that sound the same but have different meanings and spellings (e.g., their/there/they're)."}]