A graph is
- In linguistics, a letter or symbol such as an alphabetic letter, a Chinese character, or a hieroglyph.
- In mathematics, the word graph can have two meanings.
- In graph theory, a graph is an object consisting of vertices (or nodes) and edges (or arcs) between pairs of vertices.
- The graph of a function f : X -> Y is the set of all pairs (x,f(x))
- The graph of a relation, a generalisation of the graph of a function.