a visual representation of the relations between certain quantities, represented as points, plotted with reference to a set of axes
"The analyst spent hours refining the graph so that every point accurately reflected its corresponding values on the coordinate axes."
a written symbol that is used to represent speech
"the Greek alphabet has 24 characters"
A data chart (graphical representation of data) intended to illustrate the relationship between a set (or sets) of numbers (quantities, measurements or indicative numbers) and a reference set, whose elements are indexed to those of the former set(s) and may or may not be numbers.
"The analyst spent hours refining the graph to clearly show how sales fluctuated in relation to seasonal temperature changes."
In plain English: A graph is a visual chart that shows how numbers change over time or compare different amounts.
"The graph showed that sales increased steadily over the year."
Usage: Use "graph" as a noun to refer to a visual chart that displays data points connected by lines or curves to show trends or relationships between variables. Do not use it interchangeably with "chart," as a graph specifically implies a coordinate system where values are plotted against axes.
plot upon a graph
"She decided to plot the temperature changes over the summer onto a graph to spot any unusual trends."
To draw a graph.
"After analyzing the sales data, she spent an hour carefully drawing a graph on the whiteboard to show the trend."
In plain English: To graph means to draw lines or points on a chart to show how something changes over time.
"The scientist graphed the temperature changes over the last week."
Usage: Use "graph" as a verb when you plot data points on a chart to show trends or relationships. Do not use it to mean drawing a picture or diagram in general, which requires the noun "chart" or "drawing."
The word graph is a shortened form of the phrase graphic formula. It first appeared in English in 1878, with the verb form following in 1889.