a list of dishes available at a restaurant
"the menu was in French"
the dishes making up a meal
"The menu featured delicious options like grilled salmon and homemade pasta for our dinner tonight."
(computer science) a list of options available to a computer user
"When I clicked on the file icon, a menu appeared listing all the editing commands I could use."
The details of the food to be served at a banquet; a bill of fare.
"The caterer carefully reviewed the menu before finalizing the order for the wedding reception."
In plain English: A menu is a list of food and drinks available to order at a restaurant.
"We looked at the menu to decide what to order for dinner."
Usage: Use "menu" to refer to the list of available food and drink options offered at a restaurant or event for customers to choose from. It specifically denotes the catalog of choices rather than the act of ordering or the physical meal itself.
The word menu comes from French, where it originally meant "small." It entered English to refer to a list of dishes, maintaining its core sense of something small or detailed.