to learn; to master · institute; learned society; (scholarly) association

Be respectful to your superiors, if you have any.

Of course you'll catch a cold if you fall asleep under the kotatsu. You have to learn to take care of yourself.

He learned how to swim.

Last time I counted, I estimated that I know around 2500 Chinese characters.

I've never met anyone who was able to learn how to play basketball just by reading a book. The same holds true for learning foreign languages as well.