the hiragana character 'ku'
Refers to the shape of the hiragana く, often used to describe something bent or angled like that character.
He straightened the wire bent into a 'ku' shape.
noun which may take the genitive case particle 'no', noun
chevron-shaped; dogleg-shaped
Describes something bent at an angle resembling the hiragana く, such as a road, pipe, or posture.
The road bends in a dogleg.
彼はくの字に体を折ってお辞儀をした。
He bowed deeply, bending his body into a chevron shape.