土俵: sumo ring; a sandbag

The hiragana syllable どぅ (du). Its equivalent in katakana is ドゥ (du).

"ditch river": river as dirty as a ditch; dirty river

門松: a traditional decoration consisting of pine boughs and other plant cuttings placed in pairs in front of a home for New Year

(informal) being precisely what one likes

The hiragana syllable どぃ (dwi). Its equivalent in katakana is ドィ (dwi).

The hiragana syllable どぇ (dwe). Its equivalent in katakana is ドェ (dwe).

(parts of Kyūshū) in what way

drainage ditch

(onomatopoeia) sound of a heavy object falling into the water.