08145277-n
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United States Post Office, US Post Office, Post Office, PO
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an independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States |
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10420809-n
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PO, petty officer, P.O.
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a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army |
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14650556-n
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Po, polonium, atomic number 84
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a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor |
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09396150-n
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Po, Po River
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a European river; flows into the Adriatic Sea |
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