This is the 12477th most frequent Polish word.
najbliższą
The Polish word "najbliższą" means "the closest" or "the nearest" (feminine singular accusative form).
Here, 'najbliższą' is the accusative form of 'najbliższa', modifying 'aptekę' (pharmacy) and indicating it's the nearest one.
Muszę znaleźć najbliższą aptekę.
I need to find the nearest pharmacy.
Here, 'najbliższą' (nearest) modifies 'ścianę' (wall), which is the object of proximity described in the accusative case.
Poproszę o stolik przy najbliższą ścianę.
I'd like a table near the nearest wall.
In this sentence, 'najbliższą' describes 'stację kolejową' (train station) in its accusative form, suggesting proximity.