Conquer (verb)

1. To defeat in battle or war.
2. To overcome by force or strategy.
3. To overcome or master (a problem, obstacle, fear, etc.).

Origin:

From the latin conquirere, meaning "to seek after, gain by effort", from con- meaning "with" + quaerere meaning "to seek".

Examples:

1. The country was conquered by the invading army.
2. He conquered the mountain by climbing to the summit.
3. She conquered her fear of heights by skydiving.
4. They conquered the disease by finding a cure.
5. He conquered the market by introducing a new product.