1.
right arm
The physical right arm of the body.
2.
right-hand man; most trusted aide
A person's most trusted and capable assistant or subordinate. Used figuratively, similar to English "right-hand man."
She has supported the company for many years as the president's right-hand woman.
Usage
The literal meaning (sense 1) is straightforward. The figurative meaning (sense 2) is very common and describes a person who is indispensable to a leader or organization. The figurative usage often appears with patterns like ~の右腕 or 右腕として.
Common collocations
- 右腕を失う (to lose one's right-hand man)
- ~の右腕として (as someone's right-hand man)
- 右腕と呼ばれる (to be called someone's right-hand man)
- 右腕を務める (to serve as someone's right-hand man)