The controls a person taps to do something, rather than the indicators that report a state. Not one of them is defined by anybody: they spread because designers copied designers, and the food nicknames — hamburger, kebab, meatball — are folklore rather than terminology. The group is worth having precisely because it has no authority behind it, and because several members do overlapping jobs with no agreed division: a heart and a star both express approval, and a bookmark and a star both save for later.
Three stacked horizontal lines that open a navigation menu.
Three dots stacked vertically, opening a menu of further actions.
Three dots in a row, opening a menu of further actions.
A toothed wheel, marking a control that opens settings or preferences.
A magnifying glass: a circle with a short diagonal handle.
A funnel narrowing downward, restricting a list to matching items.
A pencil at an angle, opening something for editing.
A waste bin standing for deletion, usually recoverable.
An arrow curving back to the left, reversing the last action.
An arrow curving forward to the right, reinstating a reversed action.
Three dots joined by two lines, or a box with an arrow leaving it, marking a share action.
A paperclip standing for a file carried alongside a message.
A ribbon with a notched foot, saving a page for later.
A five-pointed star marking something as favoured or rated.
A heart outline expressing approval or affection for an item.
A short stroke rising into a long one, marking correctness or completion.
Two diagonal strokes crossing, marking error, dismissal or closure.
A tabbed folder standing for a container of files.