noun
physical strength; stamina; endurance
Refers to bodily power, energy, and the ability to sustain physical effort or resist illness.
毎日運動して体力をつけたい。
I want to build up my physical strength by exercising every day.
彼は
He has stamina, so he doesn't get tired even after working long hours.
noun
strength (of a business, economy, etc.)
Figurative extension: the robustness or resilience of an organization, system, or abstract entity.
この会社は体力があるので、不況でも倒産しないだろう。
This company has financial strength, so it probably won't go bankrupt even in a recession.