What does «abertura» mean in Spanish?

Separation between parts of a thing or between two things in close proximity; indentation, hole, crack.

Examples of use in Spanish: "la famosa llevaba puesto un provocativo vestido con aberturas laterales".
An opening, passage or span in a building. Windows and doors are considered openings.
Figuratively, sincerity and openness in a dialogue.
Tiny separation distance between the electrodes of a spark plug or the contacts in the interrupting contact assembly of the distributor.
Aperture value that controls the amount of light passing through the camera lens. Also called aperture.
In phonetics, the opening or height is the amplitude that the phonatory organs, when an articulation occurs, allow for the passage of air.
In seamanship, it is the separation between the castles of a ship.
In mathematics, it is the separation between the lines of an angle.
(abertura del rumbo) The angle a ship makes when turning course.
(abertura de olas) The space between two waves.
(Abertura) Municipality of Spain, in the province of Cáceres, Autonomous Community of Extremadura.