1. Noun

   master (of a house, shop, etc.)

   その醜い肉屋の旦那はあの想像上の怪物に似ている。

2. husband

   Familiar language

3. sir; boss; master; governor

   used to address a male patron, customer, or person of high status

4. patron of a mistress, geisha, bar or nightclub hostess; sugar daddy

   see パトロン

5. alms; almsgiving; almsgiver

   Buddhismorig. meaning; usu. written as 檀那see 檀越see 檀家

Also written 檀那【だんな】danna