The Collaborative International Dictionary of English v.0.48:

Berlin \Berlin\ prop. n. (Geography)
   The capital city of Germany. Population (2000) = 3,471,418.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

Berlin \Ber"lin\, n. [The capital of Germany]
   1. A four-wheeled carriage, having a sheltered seat behind
      the body and separate from it, invented in the 17th
      century, at Berlin.
      [1913 Webster]

   2. Fine worsted for fancy-work; zephyr worsted; -- called
      also Berlin wool.
      [1913 Webster]

   Berlin black, a black varnish, drying with almost a dead
      surface; -- used for coating the better kinds of ironware.
      --Ure.

   Berlin blue, Prussian blue. --Ure.

   Berlin green, a complex cyanide of iron, used as a green
      dye, and similar to Prussian blue.

   Berlin iron, a very fusible variety of cast iron, from
      which figures and other delicate articles are
      manufactured. These are often stained or lacquered in
      imitation of bronze.

   Berlin shop, a shop for the sale of worsted embroidery and
      the materials for such work.

   Berlin work, worsted embroidery.
      [1913 Webster] Berm

WordNet (r) 3.0 (2006):

Berlin
    n 1: capital of Germany located in eastern Germany [syn:
         Berlin, German capital]
    2: United States songwriter (born in Russia) who wrote more than
       1500 songs and several musical comedies (1888-1989) [syn:
       Berlin, Irving Berlin, Israel Baline]
    3: a limousine with a glass partition between the front and back
       seats