In budō sports (Japanese martial arts) like karate, judo, aikido, kendo, etc., there is usually a headquarters for each organization or region. The Japanese word honbu (本部) is generally used for that, also outside Japan. Sometimes they refer to this headquarters as honbu dojo (本部道場) in which dojo (道場) is a facility provided for practicing discipline, the training ground. Sometimes honbu is written as hombu, the way it is pronounced, but according the Hepburn transcription, the correct spelling should be honbu in which the 'n' is a syllabic n.
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