直ちょっ下か

noun, noun which may take the genitive case particle 'no', noun or participle which takes 'suru'

directly under; immediately below; directly subordinate to

Used for physical position directly underneath something, and by extension for being directly under an authority or organization. Often appears as 直下に, 直下の, or in compounds.

• ビルの直ちょっ下かを地ち下か鉄てつが通とおっている。

  A subway line runs directly under the building.

• 首しゅ相しょう直ちょっ下かのチームが対たい応おうに当あたった。

  A team directly under the prime minister handled the response.

noun, noun or participle which takes 'suru'

fall straight down; drop vertically

A less common する-verb use meaning to descend or fall almost perpendicularly; often found in descriptive or technical writing about terrain, waterfalls, or movement.

• 滝たきが岩がん壁ぺきを直ちょっ下かしている。

  The waterfall drops straight down the rock face.