This is the 3762nd most frequent Russian word.
частном
The Russian word "частном" means "private" (prepositional case, singular, masculine/neuter).
Here, 'частном' indicates a manner or context, particularly private or non-public.
Этот вопрос обсуждается в частном порядке.
This issue is being discussed privately.
In this sentence, 'частном' describes the attribute of the house, specifying it as privately owned rather than public or communal.
Я живу в частном доме.
I live in a private house.
Here, 'частном' modifies the noun 'заседании', identifying the meeting as private or restricted.