---
word: back-up
meaningVi: sự hỗ trợ
pos:
  - noun
  - adjective
examples:
  - en: If the goalkeeper is injured, we have a backup.
  - en: After the power failure, we had to restore the database from backup.
  - en: The accident caused a mile-long backup on the highway.
  - en: He's got a gun! You'd better send for backup.
synonyms:
  - line
  - tailback
  - reserve
  - spare
  - stand-in
  - substitute
  - extra
  - standby
draft: false
updatedAt: 2026-06-06
---

## Nghĩa chính

**back-up** — sự hỗ trợ.

## Từ loại

- noun
- adjective

## Ví dụ

- *If the goalkeeper is injured, we have a backup.*
- *After the power failure, we had to restore the database from backup.*
- *The accident caused a mile-long backup on the highway.*
- *He's got a gun! You'd better send for backup.*

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