1. to make power, authority, or influence more robust, effective, or dominant
The new legislation aims to strengthen power in the executive branch.
A nova legislação visa fortalecer o poder no ramo executivo.
2. to increase the capacity or capability of an entity to exert control or influence
Economic growth can strengthen power of a nation on the global stage.
O crescimento econômico pode fortalecer o poder de uma nação no cenário global.