Generalissimo (noun)

1. The highest military rank or the commander-in-chief of a country's armed forces.
2. A military leader with the highest level of authority and power.

Origin:

From spanish generalísimo, from general + -ísimo, meaning the highest in rank or authority, from italian generaleissimo, from generale + -issimo.

Examples:

1. He was appointed as the generalissimo of the armed forces.
2. The generalissimo was in charge of all the military operations.
3. He was a ruthless generalissimo who did not hesitate to order the execution of his opponents.
4. He was appointed as the generalissimo of the armed forces and had the power to make important military decisions.
5. The generalissimo's strategic decisions led to the success of the military campaign.