also: うでぢから
physical strength; muscular power; arm strength
Refers to raw physical power, especially of the arms, but often used more broadly for bodily strength.
彼は腕力に自信がある。
He is confident in his physical strength.
You shouldn't try to solve problems with brute force alone.
Extended use: physical force or violence as a means of coercion, often contrasted with reason or negotiation.
議論で勝てないと、彼は腕力に訴える。
When he can't win an argument, he resorts to violence.
He has strong arms, so he can carry heavy loads by himself.
The talks failed to settle things, so he ended up resorting to force.
After the argument, he used brute force to silence his opponent.
He won by overpowering his opponent with sheer strength.