On the Fonts tab in the dialog box of the ribbon command File | Options 
, you can specify which fonts are to be displayed in font lists (for example, the font list on the ribbon command Home | group Character).
The tab presents a list of all fonts installed on your system. To enable or disable a font in the list, click on the checkbox in front of its name. All fonts for which you have removed the check mark are no longer displayed in font lists.
Background information: The fonts installed on your system by default include several fonts that you will probably never need – for example, fonts that only contain scripts for foreign languages that you don't use. If you like, you can hide such fonts as described above.
Windows: Use font filtering of the operating system
Windows users will also find the option Use font filtering of the operating system on this tab. If this option is enabled, Windows will automatically hide in font lists all fonts that only contain scripts for foreign languages (for example, Asian/Arabic fonts).
Mac: Load only fonts relevant for installed keyboard layouts
MacOS users will also find an option on this tab called Load only fonts relevant for installed keyboard layouts.
Explanation:
On macOS, there are numerous fonts installed on the system with foreign language characters that you usually do not need (for example, Asian/Arabic fonts).
If this option is enabled, such fonts are automatically hidden in the font lists. These fonts will continue to appear in the font lists only if you use appropriate keyboards for Asian/Arabic fonts.
If you disable this option, all system fonts are always available in the font lists.