Sure, here are the words that don't belong to each group:

1. C. disease (The others are symptoms, while disease is a broader term.)
2. D. cure (The others are preventive or treatment items, while cure is a broader term.)
3. A. wear (The others are items you can wear or use, while wear is an action.)
4. C. outdoor (The others are activities, while outdoor is a place.)
5. B. lunch box (The others are types of food or drink, while lunch box is a container.)
6. B. condition (The others are specific skin issues, while condition is a broader term.)
7. B. eat (The others are comparative terms, while eat is an action.)
8. D. cook (The others are states of being, while cook is an action.)
9. B. mess (The others are related to cleanliness, while mess is the opposite.)
10. C. skin (The others are specific skin issues, while skin is a broader term.)