aperture
US /ˈæp.ɚ.tʃɚ/
UK /ˈæp.ɚ.tʃɚ/

1.
bukaan, celah, lubang
a small opening or hole, especially one through which light or air may pass
:
•
The camera's aperture controls the amount of light entering the lens.
Bukaan kamera mengontrol jumlah cahaya yang masuk ke lensa.
•
There was a small aperture in the wall, allowing us to peek through.
Ada celah kecil di dinding, memungkinkan kami mengintip.