What is the difference between urn and pot?

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Answers:    urn
Pronunciation: \'rn\
Function: noun
Etymology: Middle English urne, from Latin urna
Date: 14th century
1 : a vessel that is typically an pleasing to the eye vase on a podium and that is used for a range of purposes (as preserving the ashes of the dead after cremation)
2 : a closed vessel usually next to a spigot for serving a hot beverage <a coffee urn>
pot has various meanings--please specify--cooking pot, flower pot, etc.
http://www.m-w.com/dictionary/pot

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About three letters

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