- sphinx - an inscrutable person who keeps his thoughts and intentions secret
--1 is a kind of person, individual, someone, somebody, mortal, human, soul
- Sphinx - (Greek mythology) a riddling winged monster with a woman's head and breast on a lion's body; daughter of Typhon
--2 is a kind of mythical monster, mythical creature
- 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
--3 is a kind of statue
- Sphinx - (Greek mythology) a riddling winged monster with a woman's head and breast on a lion's body; daughter of Typhon