[ graf, grahf ]
See synonyms for: graphgraphedgraphing on

  1. a diagram representing a system of connections or interrelations among two or more things by a number of distinctive dots, lines, bars, etc.

  2. Mathematics.

    • a series of points, discrete or continuous, forming a curve or surface, each of which represents a value of a given function.

    • Also called linear graph . a network of lines connecting points.

  1. a written symbol for an idea, a sound, or a linguistic expression.

  2. Computers. a non-hierarchical data structure whose nodes store data elements and whose branches represent connections to other nodes in the structure.

verb (used with object)
  1. Mathematics. to draw (a curve) as representing a given function.

  2. to represent by means of a graph.

Origin of graph

First recorded in 1875–80; short for graphic formula;see graphic

synonym study For graph

1. See map.

Other words from graph

  • re·graph, verb (used with object)

Other definitions for graph- (2 of 3)


  1. variant of grapho- before a vowel: grapheme.

Other definitions for -graph (3 of 3)


  1. a combining form meaning “drawn,” “written” (lithograph; monograph); specialized in meaning to indicate the instrument rather than the written product of the instrument (telegraph; phonograph).

Origin of -graph

<Greek -graphos (something) drawn or written, one who draws or writes. See grapho- Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use graph in a sentence

British Dictionary definitions for graph (1 of 2)


/ (ɡrɑːf, ɡræf) /

  1. Also called: chart a drawing depicting the relation between certain sets of numbers or quantities by means of a series of dots, lines, etc, plotted with reference to a set of axes: See also bar graph

  2. maths a drawing depicting a functional relation between two or three variables by means of a curve or surface containing only those points whose coordinates satisfy the relation

  1. maths a structure represented by a diagram consisting of points (vertices) joined by lines (edges)

  2. linguistics a symbol in a writing system not further subdivisible into other such symbols

  1. (tr) to draw or represent in a graph

Origin of graph

C19: short for graphic formula

British Dictionary definitions for -graph (2 of 2)


n combining form
  1. an instrument that writes or records: telegraph

  2. a writing, record, or drawing: autograph; lithograph

Origin of -graph

via Latin from Greek -graphos, from graphein to write

Derived forms of -graph

  • -graphic or -graphical, adj combining form
  • -graphically, adv combining form

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for graph


[ grăf ]

  1. A diagram showing the relationship of quantities, especially such a diagram in which lines, bars, or proportional areas represent how one quantity depends on or changes with another.

  2. A curve or line showing a mathematical function or equation, typically drawn in a Cartesian coordinate system. The graph of the function y = x2 is a parabola.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.