This is the 10991st most frequent Russian word.
газовый
"Газовый" means "gas" or "related to gas."
In this sentence, 'газовый' is used as an adjective to describe 'котёл' (boiler), indicating that the boiler operates using gas.
Газовый котёл используется для отопления дома.
The gas boiler is used for heating the house.
Here, 'газовый' modifies 'зажигатель' (lighter), pointing out that the lighter utilizes gas to ignite the stove.
На кухне установлен газовый зажигатель для плиты.
In the kitchen, a gas lighter for the stove is installed.
In this example, 'газовая' describes 'компания' (company), suggesting that the company provides services related to gas supply.