What Is Another Way to Say “To Back Up”?

Looking for synonyms for to back up? We’ve got you covered!

Here’s a list of other ways to say to back up.

  • Support
  • Confirm
  • Validate
  • Substantiate
  • Verify
  • Corroborate
  • Reinforce
  • Bolster
  • Uphold
  • Affirm
  • Attest
  • Justify
  • Vouch for
  • Authenticate
  • Endorse
  • Ratify
  • Strengthen
  • Advocate
  • Defend
  • Second

Want to learn how to say to back up professionally? Keep reading for examples and use cases.

1. Support

Appropriate when expressing agreement or providing assistance.
Example: “The data collected from the recent study will support our hypothesis on climate change.”

2. Confirm

Used when verifying the truth or accuracy of something.
Example: “Please confirm the details of the contract before we proceed with the signing.”

3. Validate

Appropriate for acknowledging the legitimacy or accuracy of something.
Example: “The experimental results validate our theory on particle physics.”

4. Substantiate

Used when providing evidence to prove or support a claim.
Example: “We need to substantiate our claims with solid data to convince the board.”

5. Verify

Appropriate for checking the accuracy or truth of something.
Example: “Could you verify the financial figures in the report before the meeting?”

6. Corroborate

Used when providing information or evidence that supports a statement, theory, or finding.
Example: “Witness accounts were used to corroborate the timeline of events.”

7. Reinforce

Appropriate for adding support to an argument or position.
Example: “The recent findings reinforce our position on the need for renewable energy sources.”

8. Bolster

Used to give support or strengthen.
Example: “We need to bolster our argument with more statistical evidence.”

9. Uphold

Appropriate for maintaining or supporting in the face of potential opposition.
Example: “The court’s decision upholds the principles of justice and equality.”

10. Affirm

Used when stating something as true or valid, especially in a formal context.
Example: “The committee will affirm the policy changes in the upcoming meeting.”

11. Attest

Appropriate for providing proof or evidence of something.
Example: “The signed document attests to the agreement between the two parties.”

12. Justify

Used when showing or proving that something is right or reasonable.
Example: “The project manager must justify the need for additional resources.”

13. Vouch for

Appropriate for asserting the truth or reliability of something based on one’s knowledge or experience.
Example: “I can vouch for her expertise in cybersecurity, having worked with her on several projects.”

14. Authenticate

Used when proving that something is genuine, real, or true.
Example: “The art expert was called to authenticate the painting before the auction.”

15. Endorse

Appropriate for giving public approval or support to someone or something.
Example: “The CEO endorsed the new strategic plan during the press conference.”

16. Ratify

Used when formally approving or confirming something, usually an agreement or treaty.
Example: “The board will ratify the merger agreement at the next meeting.”

17. Strengthen

Appropriate for making an argument, position, or person stronger or more forceful.
Example: “We need to strengthen our market position by innovating our product line.”

18. Advocate

Used when publicly recommending or supporting a particular policy or course of action.
Example: “The policy advisor advocates for significant reforms in healthcare policy.”

19. Defend

Appropriate for protecting or upholding something against criticism or attack.
Example: “The lawyer defended the company’s practices in court effectively.”

20. Second

Used in a formal context to formally support a proposal or motion made by another.
Example: “I second the motion to increase the budget for employee training programs.”

Linda Brown