This dictionary defines cannot as “can not.” The word and the phrase mean exactly the same thing: both are the negation of the very common and useful verb can.

Can’t is a contraction of cannot, and it’s best suited for informal writing. In formal writing and where contractions are frowned upon, use cannot. It is possible to write can not, but you generally find it …

In this article, I will compare cannot vs. can not. I will use each in a sentence to illustrate the proper context, and I will also reveal a helpful trick to use when you can’t decide whether to use can not or …

However, in most circumstances, you should use "cannot" (i.e., the one-word version). "Cannot" (one word) is the most common expansion of the contraction "can't." For example: I cannot do it! ("Can't" …

CANNOT definition: 1. the negative form of the verb "can": 2. used to say that something will certainly happen: 3…. Learn more.

Sep 6, 2025 · Cannot, Can not or Can’t — what is the difference? Learn grammar rules, examples and tips for using these forms in formal and informal English.

Sep 23, 2024 · “Cannot” (one word) is the negative form of the modal verb “can.” Spelling it as “can not” (two words) is incorrect.

Feb 1, 2024 · Learn the differences between the words cannot and can not. See when you should use one word or two for accurate grammar, writing, and clarity.

May 9, 2025 · What's the difference between "cannot" and "can not"? At their core, both "cannot" and "can not" express negation of ability or possibility. However, their distinctions emerge in application, …

When looking at just their meaning, there’s absolutely zero difference between auxiliary verbs cannot and can not. They both mean the same thing — an inability to do something or an assertion that …