Paramount (adjective)

1. Superior in rank, status, or importance.
2. Of the greatest importance; paramount.

Origin:

From the french word "paramont" which means "superior" or "of the highest importance".

Examples:

1. The safety of the passengers was of paramount importance.
2. The company's reputation is of paramount importance to its success.
3. The paramount goal of the project was to improve efficiency.
4. The paramount duty of the government is to protect its citizens.
5. The paramount concern of the doctor was the patient's well-being.