Supreme (adjective)

1. Greatest or highest in degree or quality.
2. Having the highest rank or authority.
3. Highest in authority or power.
4. Superior in quality, excellence, or importance.
5. Having the highest or greatest authority or power.

Origin:

Late middle english (in the sense "highest in rank"): from old french supreme, from latin supremus "highest", superlative of superus "above".

Examples:

1. The supreme court is the highest court in the land.
2. The chef is supreme in the kitchen.
3. She is considered supreme in her field.
4. The leader's power was absolute and supreme.
5. The mountain was supreme in its majesty and grandeur.