This is the 16663rd most frequent Russian word.
сигнализация
Alarm system.
Here, 'сигнализация' refers to a home security alarm system.
Я установил новую сигнализацию в доме.
I installed a new security alarm at home.
In this case, 'сигнализация' denotes a car alarm system.
Сигнализация машины сработала от громкого шума.
The car alarm went off due to a loud noise.
This time, 'сигнализация' describes a warning alarm system in a workplace environment.