Necessity is a noun that refers to something indispensable or unavoidable in a particular situation. It is an essential requirement or condition needed for achieving a desired outcome or fulfilling a purpose. Necessity can also imply urgency or compulsion, suggesting that certain actions or decisions are unavoidable or inevitable. It often arises from circumstances that leave no other alternative or choice. Necessities can vary across different contexts and individuals, ranging from basic needs like food, shelter, and clothing to personal preferences or societal expectations. Overall, necessity represents the fundamental things we must have or do to meet essential objectives.