Meaning of “x-axis” in the English Dictionary

british dictionary

"X-axis" in American English

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X-axisnoun [ C ]

/ˈeksˌæk·sɪs/ plural X-axes /ˈeksˌæk·siz/

mathematics a horizontal line that forms one side of a coordinate plane (= region formed by two number lines)

(Definition of “X-axis” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"x-axis" in Business English

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x-axisnoun [ S ]

uk /ˈeksˌæksɪs/ us GRAPHS & CHARTS

the horizontal line of figures along the bottom of a graph, often representing time:

The x-axis represents expenditure and the y-axis profit.

(Definition of “x-axis” from the Cambridge Business English Dictionary © Cambridge University Press)