# RCA

/ˌɑɹˌsiˈeɪ/ (US) · CEFR C1 · Noun

Source: https://englishreference.com/word/rca
Updated: 2026-05-10

## Definition

Stands for Root Cause Analysis. A process used to find the real reason why a problem happened. Instead of just fixing the small issue, you look deeper to stop it from happening again.

For teachers: Abbreviation for Root Cause Analysis. A systematic process for identifying the underlying causes of problems or events to prevent their recurrence. Often used in engineering, medicine, and management contexts.

## Examples

- The team performed an RCA to find out why the server crashed.
- After the manufacturing error was discovered, the engineers conducted a thorough RCA to determine if the fault lay in the software or the hardware.
- While immediate corrective actions addressed the symptoms, the subsequent RCA revealed a fundamental flaw in the communication protocol that had been overlooked for several months.

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