Definition of strength

• the property of being physically or mentally strong; "fatigue sapped his strength"
• capability in terms of personnel and materiel that affect the capacity to fight a war; "we faced an army of great strength"; "politicians have neglected our military posture"
• physical energy or intensity; "he hit with all the force he could muster"; "it was destroyed by the strength of the gale"; "a government has not the vitality and forcefulness of a living man"