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Show words looked up
Word |
# |
Date |
Definition |
Site |
Level |
lay1 |
1 |
today |
to put something down so that it is flat against a surface. [2 definitions] |
Main |
Beg. |
black hole |
1 |
today |
a hypothetical region or body in space, possibly the remnants of a collapsed star, with such a strong gravitational pull that neither light nor matter can escape. |
Main |
Adv. |