olemus
alustusmenüü, ekraani ülareale ilmuv esimene menüüvalikute kogum
= the first set of menu choices to appear on the top line of the screen

näiteid
https://www.graitec.com/Help/Advance_Design/En/Main_Menu.htm

https://documentation.softwareag.com/natural/nat426mf2/using/use_mf_menus.htm