Hail

Freeze

Freeze is a word to describe the action of forbid apps when they are unnecessary to use device in a better way, cut down the usage of ram and save power. User can unfreeze it to revert.

There are two ways to "freeze" apps, hide and disable.
Hide

Hidden apps will not shown in launcher and installed app list. Unhide them to revert.
Disable

Disable apps will not shown in launcher. Enable them to revert.