Definitions from Wiktionary (Sphinx)

▸ noun:  (mythology) A creature with the head of a person and the body of an animal, commonly a lion.
▸ noun:  A person who keeps their thoughts and intentions secret; an enigmatic or impassive person.
▸ noun:  (dated) A mandrill (Mandrillus sphinx), formerly classified as a baboon, and called sphinx baboon.
▸ noun:  A sphinx moth.
▸ noun:  (rare) A sphincter.
▸ verb:  (transitive) To decorate with sphinxes.
▸ verb:  (transitive, intransitive) To adopt the posture of the Sphinx.
▸ verb:  (transitive, intransitive) To be inscrutable, often through silence.
▸ verb:  (intransitive) To behave in a manner characteristic of the Sphinx.
▸ noun:  (usually with "the") An ancient, large statue in Egypt, with the face of a man and the body of a lion, lying near the Great Pyramids.
▸ noun:  (Greek mythology) One of the many offspring of Typhon and Echidna, a winged lion-like creature with a woman's face, who committed suicide out of frustration after Oedipus managed to solve her riddles.

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