| 1. |
(noun) the 16th letter of the Greek alphabet |
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Related Words: alphabetic character, letter, letter of the alphabet |
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| 2. |
(noun) the ratio of the circumference to the diameter of a circle |
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Synonyms: 3.14159265358979323846... |
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Related Words: irrational number |
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| 3. |
(noun) the scientist in charge of an experiment or research project |
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Synonyms: principal investigator |
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Related Words: man of science, scientist |
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| 4. |
(noun) someone who can be employed as a detective to collect information |
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Synonyms: operative, private detective, private eye, private investigator, sherlock |
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Related Words: detective, hotel detective, house detective, house dick, inquiry agent, store detective |
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