1. To acquire knowledge, wisdom, or experience from someone or something. I learned from the greatest still-life painter in the world. I'm trying to learn from my past mistakes.

2. To glean or acquire specific knowledge, wisdom, or experience from someone or something. In this usage, a noun or pronoun is used between "learn" and "from." I'm going to be sad to see you go, boss—I've learned everything I know about the business world from you. I'm learning a lot about the way this works just by watching what other people do.