This is the 8803rd most frequent Spanish word.
sábana
Sheet (for a bed).
In this sentence, 'sábana' refers to a bed sheet used as bedding.
La sábana en la cama es de color blanco.
The sheet on the bed is white.
Here, 'sabana' (without an accent) refers to a type of grassy, open plain found in tropical and subtropical regions.
En la sabana africana, los animales viven en libertad.
In the African savanna, the animals live freely.
In this context, 'sábana' metaphorically or colloquially refers to a large piece of paper or a document.