Definitions of Tripoli:

noun: a port city and commerical center in northwestern Lebanon on the Mediterranean Sea
noun: the capital and chief port and largest city of Libya; in northwestern Libya on the Mediterranean Sea; founded by the Phoenicians in the 7th century BC
noun: a weathered and decomposed siliceous limestone; in powdered form it is used in polishing
name: A surname (very rare: popularity rank in the U.S.: #22569)