O que significa errand? [e a diferença entre errand e chore]

This is a sentence I got from some random website: she ran some errands for her mother, then spent the rest of the day working on an English paper, doing household chores, and listening for the phone.

Forget the rest of the sentence for now and focus on the word errand. Do you know what that is? According to Dictionary.com, errand is "a short and quick trip to accomplish a specific purpose, as to buy something, deliver a package, or convey a message, often for someone else." If you still think it's hard to understand, let's think of the word in context. See one more time the beginning of the sentence above: she ran some errands for her mother. When we don't know the meaning of a word, we have to pay attention to the words surrounding it. In this case, we see the word errand is combined with the verb run: run + errand. That's a collocation. When you run an errand, or do errands, go on some errands for somebody else or for yourself, you're in a little mission to accomplish a purpose. For example, if you still live with your parents, you're very likely to run some errands for your mother. And what are some of those errands? Paying a bill, taking clothes to dry cleaners, going to the mailbox, shopping, etc. Do you realize those example have something in common? That's right: Those are all things you do outside of your house, you have to leave home to attend to those business. There's a different word for routine tasks you lead at home: CHORE. Examples of chores are ironing, cleaning, cooking, taking out trash, washing the dishes, doing laundry, etc.