"sphinx" in the noun sense

1. sphinx

an inscrutable person who keeps his thoughts and intentions secret

2. Sphinx

Greek mythology) a riddling winged monster with a woman's head and breast on a lion's body daughter of Typhon

3. sphinx

one of a number of large stone statues with the body of a lion and the head of a man that were built by the ancient Egyptians

Source: WordNet® (An amazing lexical database of English)

Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.

View WordNet® License