Denshi Jisho — Online Japanese dictionary

一旦 いったん 1:
2: (Usually written using kana alone) once;
3: for a moment; temporarily; (Noun) (Archaism) one morning
Common word, Adverb 
元旦 がんたん 1: New Year's Day;
2: New Year's morning; morning of New Year's Day
Common word, Noun 
月旦 げったん first day of the month; commentary
Adverbial noun, Temporal noun 
歳旦 さいたん New Year's Day
Noun 
振旦 しんたん (ancient) China
Noun 
真旦 しんたん (ancient) China
Noun 
震旦 しんたん (ancient) China
Noun 
振旦 しんだん (ancient) China
Out-dated or obsolete kana, Noun 
真旦 しんだん (ancient) China
Out-dated or obsolete kana, Noun 
震旦 しんだん (ancient) China
Out-dated or obsolete kana, Noun 
文旦 ぶんたん shaddock; pomelo
Noun 
眛旦 まいだん dawn; daybreak
Noun, Obscure term 
黄巴旦 きばたん sulphur-crested cockatoo (sulfur) (Cacatua galerita)
Noun, Usually written using kana alone 
小巴旦 こばたん yellow-crested cockatoo (Cacatua sulphurea)
Noun, Usually written using kana alone 
大巴旦 おおばたん Moluccan cockatoo (Cacatua moluccensis); salmon-crested cockatoo
Noun, Usually written using kana alone 
人物月旦 じんぶつげったん character sketch; comments on personalities
Noun 

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