NECESSARY, a.
1. That must be that cannot be otherwise indispensably requisite. It is necessary that every effect should have a cause.
2. Indispensable requisite essential that cannot be otherwise without preventing the purpose intended. Air is necessary to support animal life food is necessary to nourish the body holiness is a necessary qualification for happiness health is necessary to the enjoyment of pleasure subjection to law is necessary to the safety of persons and property.
3. Unavoidable as a necessary inference or consequence from facts or arguments.
4. Acting from necessity or compulsion opposed to free. Whether man is a necessary or a free agent is a question much discussed.
NECESSARY, n. A privy.