| D010678 |
Philately |
Study of stamps or postal markings. It usually refers to the design and commemorative aspects of the stamp. |
Postage Stamps,Philatelies,Postage Stamp,Stamp, Postage,Stamps, Postage |
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| D011177 |
Postal Service |
The functions and activities carried out by the U.S. Postal Service, foreign postal services, and private postal services such as Federal Express. |
Mail,Mail Distribution,Mail-Order,Service, Postal,Distribution, Mail,Distributions, Mail,Mail Distributions,Mail Order,Mail-Orders,Mails,Postal Services,Services, Postal |
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| D001782 |
Blood Donors |
Individuals supplying blood or blood components for transfer to histocompatible recipients. |
Blood Donor,Donor, Blood,Donors, Blood |
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| D005060 |
Europe |
The continent north of AFRICA, west of ASIA and east of the ATLANTIC OCEAN. |
Northern Europe,Southern Europe,Western Europe |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D014481 |
United States |
A country in NORTH AMERICA between CANADA and MEXICO. |
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