Wording is the specific choice and arrangement of words used to express an idea. When you think about the wording of something, you're paying attention to exactly how something is being said: which particular words were chosen and how they're put together.

The wording matters because different word choices create different effects. Compare “Please be quiet” with “Shut up!” Both communicate the same basic request, but their wording makes them feel completely different. One is polite, the other rude. When a teacher asks you to “revise the wording” of a sentence in your essay, she wants you to find clearer, more precise, or more interesting words to express your idea.

Contracts and important documents require careful wording because a single word can change what they mean. A permission slip with confusing wording might leave parents uncertain about what they're agreeing to. When friends argue about what someone said, they're often really disagreeing about the wording: did she say “I don't want to” or “I can't”? Those similar phrases have different meanings.

Good wording makes your meaning crystal clear. Bad wording leaves people confused or gives them the wrong impression entirely. When you write or speak, choosing your wording carefully helps others understand exactly what you mean.