1. principle

noun. ['ˈprɪnsəpəl'] a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct.

Rhymes with Vital Principle

• subprincipal
• principal

2. principle

noun. ['ˈprɪnsəpəl'] a rule or standard especially of good behavior.

3. principle

noun. ['ˈprɪnsəpəl'] a basic truth or law or assumption.

4. principle

noun. ['ˈprɪnsəpəl'] a rule or law concerning a natural phenomenon or the function of a complex system.

5. principle

noun. ['ˈprɪnsəpəl'] (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature).

6. principle

noun. ['ˈprɪnsəpəl'] rule of personal conduct.

7. vital

adjective. ['ˈvaɪtəl'] urgently needed; absolutely necessary.

8. vital

adjective. ['ˈvaɪtəl'] performing an essential function in the living body.

9. vital

adjective. ['ˈvaɪtəl'] full of spirit.

10. vital

adjective. ['ˈvaɪtəl'] manifesting or characteristic of life.