Type in the correct spelling of the word stem that means the same as the word given.

1. vapor

   
   
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2. heart

   
   
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3. world or universe

   
   
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4. against

   
   
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5. skull

   
   
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6. circle

   
   
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7. know

   
   
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8. bone

   
   
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9. wood

   
   
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10. seller

    
    
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11. seven

    
    
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12. stranger

    
    
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13. vessel

    
    
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14. front

    
    
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15. like

    
    
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16. without

    
    
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17. pressure

    
    
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18. iron

    
    
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19. somewhat

    
    
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20. island

    
    
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21. attack

    
    
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22. little

    
    
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23. billionth

    
    
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24. trillionth

    
    
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25. idea

    
    
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