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Word![Sort by Word Sort by Word](images/arrow_down.gif) |
# |
Date![Sort by Date Sort by Date](images/arrow_down_h.gif) |
Definition |
Site |
Level |
mettlesome |
1 |
today |
spirited or courageous. |
Main |
Adv. |
dump truck |
1 |
today |
a truck with a bed that can tilt backward to unload its contents through the opened tailgate. |
Main |
Adv. |
radon |
1 |
today |
a radioactive gas that is one of the chemical elements. It is found in small amounts in some soils and rocks. (symbol: Rn) |
Main |
Int. |