Top 31 Slang For Confirm – Meaning & Usage

When it comes to confirming something, sometimes a simple “yes” or “no” just won’t cut it. That’s where slang for confirm comes in. Whether you’re texting your friends or chatting in an online forum, using the right lingo can make you sound like a true insider. In this listicle, we’ve rounded up the top slang words and phrases for confirming, so you can stay in the loop and communicate like a pro. Get ready to level up your language skills and impress your friends with your newfound slang knowledge!

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1. Verify

To verify means to confirm the truth, accuracy, or validity of something. It involves conducting a thorough examination or investigation to ensure that the information or statement is correct.

  • For example, a journalist might say, “I need to verify the sources before publishing the article.”
  • In a conversation, someone might ask, “Can you verify if the meeting is still happening tomorrow?”
  • When confirming an online purchase, a user might receive an email saying, “Please verify your email address to complete the transaction.”

2. Approve

To approve means to give permission, consent, or authorization to something. It indicates that a decision has been made to support or accept a proposal, action, or request.

  • For instance, a manager might say, “I approve your vacation request.”
  • In a meeting, someone might ask, “Can we get everyone’s approval on this budget proposal?”
  • When submitting an article for publication, a writer might receive an email saying, “Your article has been approved and will be published next week.”

3. Validate

To validate means to confirm or establish the truth, accuracy, or validity of something. It involves providing evidence or proof to support a claim, statement, or argument.

  • For example, a scientist might say, “We need to validate the results of our experiment through further testing.”
  • In a discussion, someone might ask, “Can you validate your sources for this information?”
  • When filling out an online form, a user might receive a prompt saying, “Please validate your email address by clicking on the link provided.”

4. Ratify

To ratify means to confirm or formally approve a decision, agreement, or action. It involves giving official consent or endorsement to a document, treaty, or policy.

  • For instance, a government representative might say, “We need the Senate to ratify the treaty before it becomes law.”
  • In a business setting, someone might ask, “Have all the board members ratified the new company policy?”
  • When finalizing a contract, a lawyer might say, “Please sign here to ratify the agreement.”

5. Prove

To prove means to demonstrate or establish the truth, validity, or existence of something. It involves providing evidence or convincing arguments to support a claim or statement.

  • For example, a lawyer might say, “We have enough evidence to prove the defendant’s guilt.”
  • In a debate, someone might argue, “Can you prove that your theory is correct?”
  • When discussing a scientific discovery, a researcher might say, “Our findings prove that this treatment is effective.”

6. Certify

To confirm or validate something as true or accurate. “Certify” is often used in a formal or official context.

  • For example, a document might require a signature to certify its authenticity.
  • A person might say, “I need to certify that this product meets safety standards.”
  • In a legal setting, a witness might be asked to certify their testimony under oath.

7. Corroborate

To provide evidence or support for a statement, theory, or claim. “Corroborate” implies that the confirmation comes from multiple sources or pieces of evidence.

  • For instance, a witness might corroborate another witness’s testimony in a court case.
  • In a news article, a journalist might say, “Multiple sources have corroborated the claims of election fraud.”
  • A detective might say, “We need more evidence to corroborate the suspect’s alibi.”

8. Endorse

To publicly support or confirm something, often by giving one’s approval or recommendation.

  • For example, a celebrity might endorse a product by appearing in an advertisement.
  • A politician might say, “I endorse this candidate for mayor.”
  • A reviewer might write, “I wholeheartedly endorse this book for anyone interested in history.”

9. Substantiate

To provide evidence or proof to support or confirm a statement or claim. “Substantiate” implies a need for concrete evidence or factual support.

  • For instance, a scientist might conduct experiments to substantiate their hypothesis.
  • In a debate, one might say, “You need to substantiate your argument with facts.”
  • A lawyer might ask a witness, “Can you substantiate your claim with any evidence?”

10. Support

To provide assistance, evidence, or confirmation for something. “Support” can refer to both emotional or practical assistance, as well as confirming or validating a statement or claim.

  • For example, a friend might support you through a difficult time by offering a listening ear.
  • A researcher might say, “The data supports our hypothesis.”
  • In a discussion, someone might say, “I can support my opinion with statistics and research.”

11. Attest

To confirm or verify the truth or validity of something. “Attest” is often used in formal or legal contexts.

  • For example, a witness might attest to the accuracy of a statement by saying, “I can attest that what they said is true.”
  • In a business setting, someone might attest to the authenticity of a document by signing it and adding the phrase, “I attest to the accuracy of the information provided.”
  • A person might use the term to emphasize their agreement with someone else’s statement, saying, “I can attest to that, it happened exactly as they described.”

12. Authenticate

To confirm the authenticity or validity of something. “Authenticate” is often used in the context of verifying the identity or origin of an object or document.

  • For instance, a person might authenticate a signature by comparing it to a known sample.
  • In the world of art, experts authenticate paintings to determine if they are genuine or forgeries.
  • In the digital realm, websites often require users to authenticate their identity with a username and password.
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13. Justify

To provide evidence or reasoning to support or confirm a decision, action, or belief. “Justify” often implies defending or explaining the validity of something.

  • For example, a student might justify their answer on a test by showing their work and explaining their thought process.
  • In a debate, a person might justify their position by presenting facts and logical arguments.
  • A person might justify their purchase of an expensive item by explaining its long-term value or utility.

14. Sanction

To officially confirm or authorize something, often with legal or formal implications. “Sanction” can also refer to penalties or measures imposed on individuals or entities as a form of confirmation or punishment.

  • For instance, a government might sanction a new law by passing it through the appropriate legislative process.
  • In sports, a governing body might sanction a competition by providing official approval and support.
  • The United Nations might sanction a country by imposing economic or political restrictions as a confirmation of disapproval or to encourage change.

15. Settle

To reach a final decision or agreement, often after a period of negotiation or discussion. “Settle” can also mean to confirm or establish something definitively.

  • For example, two parties might settle a legal dispute by reaching a mutually acceptable agreement.
  • In a group setting, a person might settle a debate by providing a convincing argument or evidence.
  • A person might settle a question or uncertainty by finding a definitive answer or solution.

16. Vouch

To vouch for something means to confirm or support its validity or truthfulness. It is often used when someone is providing assurance or guaranteeing the accuracy of a statement or claim.

  • For example, a friend might vouch for another friend’s character by saying, “I can vouch for him, he’s always been honest and trustworthy.”
  • In a discussion about a product’s quality, a customer might say, “I can vouch for this brand, I’ve been using their products for years.”
  • A colleague might vouch for someone’s expertise by stating, “I’ve worked with her before and can vouch for her knowledge in this field.”

17. Warrant

To warrant something means to justify or prove its validity or necessity. It is often used to confirm that a particular action or decision is justified or reasonable.

  • For instance, a manager might say, “The situation warrants immediate action.”
  • In a legal context, a judge might issue a warrant to authorize a search or arrest based on probable cause.
  • A student might say, “The evidence I presented warrants further investigation into the topic.”

18. Witness

To witness something means to see or experience it firsthand. It is often used to confirm the occurrence or existence of an event, situation, or phenomenon.

  • For example, a bystander might witness a car accident and provide a statement to the police.
  • In a court of law, a witness is called to testify and provide evidence or confirm facts.
  • A person might say, “I witnessed the most beautiful sunset last night.”

19. Bear out

To bear out something means to support or confirm its truth or validity. It is often used when evidence or facts align with a statement or claim, providing confirmation.

  • For instance, data from a study might bear out a hypothesis or theory.
  • In a debate, one side might present evidence to bear out their argument.
  • A person might say, “The results of the experiment bear out what we expected.”

20. Check out

To check out something means to investigate or confirm its accuracy, validity, or condition. It is often used when verifying information or assessing the credibility of something.

  • For example, a journalist might check out a source before publishing a story.
  • A person might say, “I’ll check out that restaurant before making a reservation.”
  • When someone recommends a book, a person might say, “I’ll check it out and see if it interests me.”

21. Give the go-ahead

This phrase is used to indicate giving permission or approval for something to proceed. It means to confirm that something is allowed or permitted to happen.

  • For example, a manager might say, “I will give the go-ahead for the project to start.”
  • In a discussion about travel plans, someone might ask, “Did you get the go-ahead from your boss to take time off?”
  • A team leader might say, “Once we receive the go-ahead from upper management, we can proceed with the implementation.”

22. Thumbs-up

This slang term comes from the gesture of giving a thumbs-up, which is universally recognized as a sign of approval or agreement. It is used to confirm that something is accepted or agreed upon.

  • For instance, someone might respond to a proposal by saying, “I give it a thumbs-up.”
  • In a group chat, a person might send a thumbs-up emoji to indicate agreement with a suggestion.
  • A friend might say, “If you need my help, just give me a thumbs-up and I’ll be there.”

23. Rubber-stamp

This term is used to describe the act of giving approval without thoroughly reviewing or questioning the details. It implies confirming something without much thought or scrutiny.

  • For example, in a bureaucratic setting, someone might say, “They just rubber-stamp everything without really looking at it.”
  • In a discussion about decision-making, a person might criticize a process by saying, “We can’t just rubber-stamp every proposal that comes our way.”
  • A journalist might write, “The committee rubber-stamped the controversial policy without considering the potential consequences.”

24. Sign off on

This phrase is used to indicate giving formal approval or authorization for something. It means to confirm that something is officially accepted or allowed.

  • For instance, a supervisor might say, “I will sign off on your vacation request.”
  • In a business context, someone might ask, “Did the legal department sign off on the contract?”
  • A manager might say, “Once the CEO signs off on the budget, we can move forward with our plans.”

25. Make sure

This phrase is used to indicate the act of ensuring or confirming something. It means to double-check or verify that something is correct or in order.

  • For example, a teacher might say, “Make sure you have completed all the assignments before the deadline.”
  • In a conversation about travel plans, someone might say, “Make sure you book your hotel in advance.”
  • A parent might remind their child, “Make sure you lock the door when you leave the house.”

26. Stamp

To stamp something means to give it official approval or confirmation. It is often used in informal settings to indicate agreement or endorsement.

  • For example, someone might say, “I stamp that idea, let’s go with it.”
  • In a discussion about a plan, a person might say, “I’ll need to get the boss’s stamp of approval before moving forward.”
  • Another might say, “Consider it stamped, we’re all in agreement.”

27. Size up

To size up means to carefully evaluate or assess a situation or person. It can also mean to make a judgment or estimation about something.

  • For instance, in a conversation about a potential business partner, someone might say, “I need to size him up before making a decision.”
  • In a discussion about a job candidate, a person might say, “I’ll size up their skills and experience during the interview.”
  • Another might ask, “Have you sized up the competition? What are our chances?”

28. Affirm

To affirm means to confirm or assert something as true or valid. It is often used in formal or serious contexts to indicate agreement or support.

  • For example, someone might say, “I affirm my commitment to this project.”
  • In a legal setting, a person might say, “I affirm that the testimony I am about to give is true.”
  • Another might say, “I affirm the importance of education in shaping young minds.”

29. Assure

To assure means to give someone confidence or guarantee something. It is often used to provide comfort or reassurance.

  • For instance, in a conversation about a trip, someone might say, “I assure you, everything will be taken care of.”
  • In a discussion about a deadline, a person might say, “I can assure you, the project will be completed on time.”
  • Another might say, “You have my assurance that your concerns will be addressed.”

30. Confirm

To confirm means to establish the truth or accuracy of something. It is often used to verify information or make sure something is correct.

  • For example, someone might say, “Can you confirm the time and location of the meeting?”
  • In a discussion about a reservation, a person might say, “I need to confirm our dinner reservation.”
  • Another might ask, “Can you confirm that the package has been delivered?”

31. Reaffirm

To confirm or validate something that has already been stated or established. “Reaffirm” is often used when there is a need to emphasize or reinforce the previous confirmation.

  • For instance, a supervisor might say, “I just want to reaffirm that the deadline for this project is next Friday.”
  • During a meeting, a team member might say, “Let me reaffirm what we discussed earlier. We will be implementing the new software system next month.”
  • In a conversation, someone might say, “I want to reaffirm my commitment to this relationship and assure you that I’m fully invested.”