Learn (verb)

1. To gain knowledge, understanding or skill through study, experience, or instruction.
2. To become informed of or familiar with.
3. To commit something to memory.
4. To discover or come to realize something.

Origin:

From middle english lernen, from old english leornian ("to learn"), from proto-germanic *liznōną ("to learn"), from proto-indo-european *leykʷ- ("to learn").

Examples:

1. She learned to speak Spanish in school.
2. He learned how to play the guitar by himself.
3. They learned about the history of the city on the tour.
4. I learned that he was lying to me.
5. He learned his lesson and won't do it again.