Definition of "Strength" :
noun: the property of being physically or mentally strong
"Fatigue sapped his strength."
noun: capacity to produce strong physiological or chemical effects
"The strength of the drinks."
noun: physical energy or intensity
"It was destroyed by the strength of the gale."
noun: permanence by virtue of the power to resist stress or force
noun: the amount of energy transmitted (as by acoustic or electromagnetic radiation)
"They measured the station's signal strength."
noun: an asset of special worth or utility
noun: the power to induce the taking of a course of action or the embracing of a point of view by means of argument or entreaty
"The strength of his argument settled the matter."
noun: capability in terms of personnel and materiel that affect the capacity to fight a war
"We faced an army of great strength."
noun: the condition of financial success
"The strength of the company's stock in recent weeks."