Final answer:
The term that defines the ability to influence people toward organizational objectives is 'leadership'. Leadership differs from authority, which is based on legitimacy, and power, which is a broader concept of exerting will over others.
Step-by-step explanation:
The ability to influence people toward organizational objectives is the definition of leadership. Leadership involves using your influence to motivate and guide others towards achieving a common goal. It is about inspiring and empowering others to work towards the vision and objectives of the organization, rather than simply exerting authority or power over them. Authority, on the other hand, refers to power that people accept because it comes from a source that is perceived as legitimate. While power in its broadest sense is the ability to exercise one's will over others or to do, act, or accomplish something. Management is more about planning, organizing, leading, and controlling resources in the organization.