Three dots stacked vertically, opening a menu of further actions.
Also known as: Vertical ellipsis menu, Three-dot menu
Three dots in a vertical column open a menu of secondary actions for whatever they sit beside. Nobody defines the convention; it spread because everyone copied it.
Opens a menu of additional actions relating to the item it is placed beside, rather than a menu for the whole screen.
Contexts: Software
The name is one of a family of food nicknames — hamburger, kebab, meatball, bento — coined informally by designers rather than by any standards body.
Contexts: Software
Three small filled dots of equal size arranged in a single upright column with even gaps between them.
The same three dots turned through a right angle. Vertical is the kebab, horizontal the meatball, and which appears where is a matter of house style rather than meaning.
Both are built from lines and dots, and both are used in software contexts.