What is the meaning of Sphinx?

A creature with the head of a person and the body of an animal, commonly a lion.

A person who keeps their thoughts and intentions secret; an enigmatic or impassive person.

A mandrill (Mandrillus sphinx), formerly classified as a baboon, and called sphinx baboon.

A sphinx moth.

A sphincter.

To decorate with sphinxes.

To adopt the posture of the Sphinx.

To be inscrutable, often through silence.

To behave in a manner characteristic of the Sphinx.

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sphinx

Source: wiktionary.org