This is the 12218th most frequent Turkish word.
haberimizden
"From our news" or "about our news."
Here, 'haberimizden' refers to the source (our news) providing information.
Yeni bir gelişme hakkında haberimizden bilgi edinebilirsiniz.
You can learn about the new development from our news.
In this sentence, 'haberimizden' means 'without our being informed' or 'without our knowledge'.
Haberimizden olmadan bir etkinliği düzenlediler.
They organized an event without our knowledge.
In this usage, 'haberimizden' implies something occurring beyond our awareness or notice.