片かた腕うで

noun, noun which may take the genitive case particle 'no'

one arm

Refers to a single arm, often in contexts of physical ability or disability.

• 彼かれは片かた腕うでで重おもい荷に物もつを持もち上あげた。

  He lifted the heavy luggage with one arm.

noun

right-hand man; trusted assistant

Figurative use for a person who is indispensable support, like a right arm.

• 彼かれは社しゃ長ちょうの片かた腕うでとして会かい社しゃを支ささえている。

  He supports the company as the president's right-hand man.