Nouns for graphs and figures:

bar chart (bar charts)
NOUN A bar chart is a graph which uses parallel rectangular shapes to represent changes in the size, value, or rate of something or to compare the amount of something relating to a number of different
countries or groups, [mainly UK; US bar graph]
■ The bar chart below shows the huge growth of U.K. car exports over the past few years.

diagram (diagrams)
NOUN A diagram is a simple drawing which consists mainly of lines and is used, for example, to explain how a machine works.
■ Each tube enters the muscle wait of the uterus (see diagram on page 20).

flow chart (flow charts)
NOUN A flow chart or a flow diagram is a diagram which represents the sequence of actions in a particular process or activity.
■ [+of] a flow chart of the process
■ Design a flow chart to explain the registration process.

line graph (line graphs)
NOUN A line graph is a diagram that shows the relationship between two sets of changing numbers or measurements.
■ Begin by drawing the axes of a standard line graph.
■ The line graph shows the degree and direction of change over time.

pie chart (pie charts)
NOUN A pie chart is a circle divided into sections to show the relative proportions of a set of things.
■ The pie chart above shows how much more Britain has saved in shares than bonds.
■ The pie chart indicates that one company has emerged as the dominant market share leader.

table (tables)
NOUN A table is a written set of facts and figures arranged in columns and rows.
■ Consult the table on page 104.
■ Other research supports the figures in Table 3.3. Components of graphs and figures:

axis (horizontal/vertical) (axes)
NOUN An axis of a graph is one of the two lines on which the scales of measurement are marked. When you describe a graph, you refer to the line along the bottom of the graph as the horizontal axis and the line
down the side of the graph as the vertical axis.
■ The vertical axis shows the level of the students’ knowledge and the horizontal axis shows the length of the course in weeks.

column (columns)
NOUN On a printed page such as a page of a dictionary, newspaper, or printed chart, a column is one of two or more vertical sections which are read downwards.
■ [+ of] We had stupidly been looking at the wrong column of figures.

key (keys)
NOUN The key on a graph, chart, or diagram is a list of the symbols, abbreviations, or colours used and their meanings. For example, the key for a chart might show that the figures for girls are red and the figures for boys are blue.

row (rows)
NOUN A row of things or people is a number of them arranged in a line.
■ [+ of] a row of plants
■ Several men are pushing school desks and chairs into neat rows.

segment (segments)
NOUN A segment of a circle is one of the two parts into which it is divided when you draw a straight line through it.
■ Divide the circle into segments like an orange.
■ The pie chart is divided into equal segments.

step (steps)
NOUN A step is one of a series of actions that you take in order to achieve something.
■ [+ towards] He greeted the agreement as the first step towards peace.
■ The next step is to put the theory into practice.

Verbs meaning show:

depict (depicts, depicting, depicted)
If a graph or diagram depicts something, it is shown there in the form of lines, shapes, or figures.
■ Reading from left to right, the first four columns depict our transactions with customers.

represent (represents, representing, represented)
VERB If a sign or symbol represents something, it is accepted as meaning that thing.
■ A black dot in the middle of the circle is supposed to represent the source of the radiation.