noun, masculine/aˈxuste/plural: ajustes
ajuste is masculine in Spanish.
adjustment, fine-tuning; fit; setting (e.g. in a mobile phone)
“Es posible que desee probar más de un producto para encontrar el mejor ajuste para usted.” — You may want to try more than one product to find the best fit for you.
Synonyms: configuración
Deverbal from ajustar.