“Certain” vs. “Sure”: What’s the Difference?

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The difference between “certain” and “sure”

  • While both "certain" and "sure" denote confidence, "certain" is more absolute and signifies a situation that is established and beyond doubt.
  • "Sure," on the other hand, can convey confidence in a more subjective sense and is sometimes used to express a willingness to take a risk.
  • Additionally, "certain" is often used in more formal contexts, while "sure" is more informal and casual.
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What is the definition of “certain” and “sure”?

Certain
  • Something that is certain is known for a fact and is without doubt.
  • It refers to a situation or outcome that is established and cannot be changed.
  • It can also indicate a strong sense of conviction or confidence in a particular belief or opinion.
Sure
  • "Sure" implies a high degree of confidence in something.
  • It can also mean that something is reliable or dependable.
  • It can be used to indicate an agreement or willingness to do something.

Which is the more popular variant on the Internet?

“Certain” is the more popular variant on the web.
More popular
Certain
4,920,000,000 results on the web
Examples
  1. I'm certain that I turned off the stove before leaving the house.
  2. The doctor was certain that the patient would make a full recovery.
  3. He is certain that it will rain tomorrow.
Sure
4,750,000,000 results on the web
Examples
  1. I'm sure that I packed my phone charger, but I can't find it now.
  2. He was sure that he would get the job after acing the interview.
  3. Are you sure that you want to go through with this plan? It could be risky.
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