I think you are looking for a symbol not a word. That symbol would be the bald eagle.
The Maori word for strength is "mana" which encompasses authority, power, and spiritual strength in the Maori belief system.
for strength, force or power, the word is Nguvu
The word power, as in strength, is 'chikara,' written: 力
Dynami! and it means power/strength...
macht is the word for power in Dutch. This word represents strength in Dutch.
freedom is the power to be free
Power or durability.
power
The word 'strength' is the noun form, a word for a quality or state of being strong; physical power; a word for a thing.
A sinew is a tendon or a word the represent strength or power
BHP is a sporting word that simply stands for brake horsepower (brake horse-power).
Power is the ability to act or produce an affect at will. Strength is the state, property, or quality of being able to wisely use, OR NOT USE power.