Definition of sphinx
1a capitalized : a winged female monster in Greek mythology having a woman's head and a lion's body and noted for killing anyone unable to answer its riddle
b : an enigmatic or mysterious person
she is a sphinx whose features hold a blank fascination
2 : an ancient Egyptian image in the form of a recumbent lion having a man's head, a ram's head, or a hawk's head
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Time Traveler for sphinx
The first known use of sphinx was in the 15th century
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