This is the 3524th most frequent Russian word.
режимом
The Russian word "режимом" means "by/with the regime" or "mode" (instrumental case of "режим").
In this sentence, 'режимом' is used to refer to a schedule or routine of daily activities.
Я привык к новому режиму дня.
I got used to the new daily routine.
Here, 'режимом' means a specific operational state or mode of the computer's functions.
Компьютер работает в режиме энергосбережения.
The computer operates in energy-saving mode.
In this context, 'режимом' refers to a condition or mode of operation, specifically emphasizing secrecy.