This is the 5097th most frequent Spanish word.
fibra
Fiber.
Here, 'fibra' refers to dietary fiber contained in food.
Las frutas y verduras contienen mucha fibra.
Fruits and vegetables contain a lot of fiber.
In this sentence, 'fibra' refers to a material fiber used in manufacturing textiles.
Esa alfombra está hecha de fibra sintética.
That carpet is made of synthetic fiber.
Here, 'fibra' metaphorically represents moral strength or resilience in addressing difficulties.