This is the 12065th most frequent Polish word.
linowej
"Linowej" means "cable" or "rope" (adjective form, e.g., related to a rope or cable).
Here, 'linowa' is an adjective modifying 'kolejka', specifying the type of cableway system.
Kolejka linowa zabrała nas na szczyt góry.
The cable car took us to the top of the mountain.
In this example, 'linowa' describes the 'trasa', indicating that the route involves ropes.
Trasa linowa była pełna wyzwań dla wspinaczy.
The rope route was full of challenges for the climbers.
'Linowa' in this sentence modifies 'huśtawkę', signifying that the swing is made with ropes.