---
title: "Update Vocabulary Concept Definition"
method: POST
path: "/vocab/concepts/{cvcid}/definition/{locale}"
tags: ["Vocabularies"]
---

# Update Vocabulary Concept Definition

`POST /vocab/concepts/{cvcid}/definition/{locale}`

Update or add a translation for a concept definition.

## Path parameters

- `cvcid` string, required
- `locale` string, required

## Headers

- `Content-Type` 'application/x-fs-v1+json' | 'application/json', required

## Response `201`

A new translation was successfully created.

## Other responses

- `204` — An existing translation was successfully updated.
- `308` — If the concept has been superseded by a different concept
- `404` — If the requested concept is not found.

---

[API](https://skmtc.net/familysearch/apis/authentication-endpoints.md) · [All operations](https://skmtc.net/familysearch/apis/authentication-endpoints/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/familysearch/authentication-endpoints/revisions/2b5020574a62/schema)