Japanese

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For pronunciation and definitions of とうかん – see the following entries.
投函
[noun] posting a letter
[verb] to post a letter, to mail a letter
東莞
[proper noun] Dongguan (a prefecture-level city in Guangdong, in southeastern China)
(This term, とうかん, is the hiragana spelling of the above terms.)

(The following entries are uncreated: 刀環, 冬官, 灯竿, 東関, 凍寒, 唐冠, 透関, 盗汗, 陶棺, 陶管, 登館, 等閑, 統管, 統監.)