↓

The downward direction, a relative direction
The keyboard cursor control key, an arrow key
A downwards arrow, a Unicode arrow symbol
Logical NOR, operator which produces a result that is the negation of logical OR
An undefined object, in mathematical well-definition
A mathematical symbol for "approaching from above"
A comma category, in category theory
Down (game theory), a mathematical game
The ingressive sound, in phonetics
An APL function
"Decreased" (and similar meanings), in medical notation
The precipitation of an insoluble solid, in chemical notation

See also