This is the 3235th most frequent Russian word.
облачная
"Oblachnaya" means "cloudy" in English.
The word 'облачная' is an adjective describing the weather as cloudy.
Сегодня погода облачная.
Today the weather is cloudy.
The word 'облачная' modifies 'платформа' to indicate the type as cloud platform.
Она работает над проектом облачная платформа.
She is working on a project for a cloud platform.
The word 'облачная' describes 'высота' to indicate it's related to clouds.