Definition of bar chart noun from the Oxford Advanced Learner's Dictionary

 

bar chart

 noun
noun
BrE BrE//ˈbɑː tʃɑːt//
 
; NAmE NAmE//ˈbɑːr tʃɑːrt//
 
(also bar graph)
 
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a diagram that uses lines or narrow rectangles (= bars) of different heights (but equal widths) to show different amounts, so that they can be compared The bar chart shows what the average American consumes in a year compared with other nationalities. compare histogramExtra examples The bar chart shows what the average American consumes in a year compared with other nationalities.
See the Oxford Advanced American Dictionary entry: bar chart