prop. n. [ G. tunken to dip. ] One of a religious denomination whose tenets and practices are mainly those of the Baptists, but partly those of the Quakers; -- called also Tunkers, Dunkards, Dippers, and, by themselves, Brethren, and German Baptists, and they call their denomination the Church of the Brethren. [ 1913 Webster ]

☞ The denomination was founded in Germany in 1708, but after a few years the members emigrated to the United States; they were opposed to military service and taking legal oaths, and practiced trine immersion. [ 1913 Webster + WordNet 1.5 ]

Seventh-day Dunkers, a sect which separated from the Dunkers and formed a community, in 1728. They keep the seventh day or Saturday as the Sabbath. [ 1913 Webster ]

prop. n. the name of a town and a battle fought there, in World War II (1940) when 330, 000 Allied troops had to be evacuated from the beaches at Dunkirk in a desperate retreat under enemy fire. Most of the forces were safely evacuated to England.
Syn. -- Dunkirk. [ WordNet 1.5 ]