To copy means to make something that looks or works just like something else. When you copy a friend's drawing, you try to make your picture match theirs exactly. When you copy a sentence from the board, you write down the same words in the same order.

Copying serves many useful purposes. Scientists copy successful experiments to verify results. Musicians copy techniques from masters to learn their craft. Before printing presses existed, monks copied books by hand to preserve knowledge. Your computer constantly copies files when you save your work or share a document.

But context matters. Copying someone else's homework and claiming it as your own is dishonest. Copying a patented invention and selling it violates the law. Yet copying your notes to share with a sick classmate helps them catch up. The difference lies in whether you're learning, helping, or trying to deceive.

The word can also mean a single example of something produced in quantity. One copy of a book is a single physical volume. If a magazine prints 50,000 copies, it produces 50,000 identical versions. When an editor reviews copy, they're checking the text that will be printed or published.

A copycat is someone who imitates others too much and may lose their own originality in the process.