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flat line. In DICTIOUS you will not only get to know all the dictionary meanings for the word
flat line, but we will also tell you about its etymology, its characteristics and you will know how to say
flat line in singular and plural. Everything you need to know about the word
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English
Noun
flat line (plural flat lines)
- Alternative form of flatline.
2023 February 8, Sir Michael Holden, “Comment: Boom or bust: time to decide”, in RAIL, number 976, page 3:"Overall satisfaction with rail journey", as measured fortnightly by Transport Focus, has maintained a broadly flat line at around 85% across the last four months of travel disruption, while "satisfaction with punctuality/reliabilty" is hovering around 75%.