open letter
US /ˌoʊ.pən ˈlet̬.ɚ/
UK /ˌoʊ.pən ˈlet̬.ɚ/
1.
open brief
a letter of protest or appeal addressed to a particular person or group but intended for general publication
:
•
The activists published an open letter to the government.
De activisten publiceerden een open brief aan de regering.
•
Her open letter about climate change went viral.
Haar open brief over klimaatverandering ging viraal.