What is the process called when ice turns directly into vapor?

The process when ice turns directly into vapor is called sublimation. During sublimation, the ice absorbs heat and changes directly from a solid to a gas without becoming liquid first. This usually happens under certain conditions, such as low pressure and high temperature. Sublimation is commonly observed with dry ice (solid carbon dioxide) and can also occur with snow or ice in very cold environments.

This question related to Chapter 8 Science Curiosity Class 6th NCERT.
From the Chapter 8. A Journey through States of Water.
Give answer according to your understanding.