This is the 14345th most frequent Turkish word.
olmamamız
"Olmamamız" means "our not being" or "our not existing" in English.
The word 'olmamamız' could substitute 'konuşmamamız' to indicate collectively not being with him.
Onunla konuşmamamız daha iyi.
It's better if we don't talk with him.
Here, 'olmamamız' expresses the absence of a group collectively.
Takımın maçta olmamamız büyük bir eksiklik yaratır.
Our not being at the match creates a big gap for the team.
In this sentence, 'olmamamız' implies not being involved or a lack of presence in a situation.