Он попытался замаскировать своё разочарование улыбкой.
Definitionen
To cover or conceal something so that it is not visible or recognizable.
She used makeup to mask the blemishes on her skin.
To disguise or hide the true nature of something.
The company tried to mask its financial problems by releasing optimistic reports.
To protect oneself or others by wearing a mask, especially to prevent the spread of disease.
During the pandemic, people were advised to mask in public places.
In computing and electronics, to apply a mask to data, a signal, or a surface in order to select, protect, or modify particular parts while leaving others unaffected.
The firmware masks the upper four bits of the control register before processing.