A tithe barn was a type of barn used in the Middle Ages for storing the tithes - a tenth of the farm's produce which had to be given freely to the church.
There are many surviving examples of medieval tithe barns in England:
There are still many examples of tithe barns around England.
... French automobile maker; see DB (car)
DB is the abbreviation for Deutsche Bahn, the major German railway company
DB is the abbreviation of Dominion Breweries[?], ...