1. Prefixes and Suffixes

2. A prefix is a group of letters that go in front of a root (base) word and change the meaning of that word.

3. Click the mouse on each root (base) word to see what happens when a prefix is added.
lucky unlucky
behave misbehave
proper improper
angle triangle
complete incomplete
colored multicolored
responsible irresponsible
social antisocial
test pretest
run rerun

4. Unlucky means not lucky.
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5. Misbehave means to not behave.
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6. Improper means not proper.
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7. Triangle means three angles.
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8. Incomplete means not complete.
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9. Multicolored means many colors.
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10. Irresponsible means not responsible.
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11. Antisocial means not social.
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12. Pretest means before the test.
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13. Rerun means to run again.
Learn about suffixes

14. A suffix is a group of letters that go at the end of a root (base) word and change the meaning of that word.

15. Click the mouse on each root (base) word to see what happens when a suffix is added.
fear fearless fool foolish
kind kindness America American
teach teacher simple simplify
help helpful piano pianist
child childhood wise wisdom

16. Fearless means without fear.
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17. Kindness means a state of being kind.
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18. A teacher is one who teaches.
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19. Helpful means full of help.
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20. Childhood means during the particular time as a child.
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21. Foolish means like a fool.
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22. American means a native of America.
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23. Simplify means to make simple.
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24. A pianist is one who plays the piano.
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25. Wisdom is the state of being wise.
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