Housework is a TYPE of chore. Mowing the lawn is a type of chore. Shoveling snow is a type of chore. Chores is a general word which describes all the mundane work we have to do on an ongoing basis. The word has that feeling about it so you can use it as a mild insult. For example, "talking to you is a real chore", which means "I have to talk to you but I'm not enjoying it very much".

And just to add, since you have lots of US English answers: In British English ( and not just in Britain) 'chore' is not used to mean a task to be done. It is sometimes used as a description, e.g. 'This is such a chore', in the sense that Laura and Craig mentioned.

One way is that chores can be outdoor activities. We can talk about “farm chores” on a family farm that include activities like collecting the eggs and milking the cows. In more common contexts nowadays, yard work like mowing the lawn is a chore. But none of this is housework.

Housework- all domestic cleaning, laundry, cooking Chores- usually scheduled house or garden or barn maintenance A Chore- burdensome task, such as cleaning one's nails, hauling trash to the dump while in contrast several "crazy" :) people take pleasure in housework.

In US English, housework relates to things that are done to keep up the house like cleaning floors and bathrooms, making beds, cooking and washing dishes. Most of the time, these things happen inside the house itself. Chores are more generic or broader. You can have a chore, a regular, boring task, outside the house. Housework is a chore but not every chore is housework!