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ultra-fast. In DICTIOUS you will not only get to know all the dictionary meanings for the word
ultra-fast, but we will also tell you about its etymology, its characteristics and you will know how to say
ultra-fast in singular and plural. Everything you need to know about the word
ultra-fast you have here. The definition of the word
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English
Etymology
From ultra- + fast.
Adjective
ultra-fast (not comparable)
- Alternative form of ultrafast
1960 February, “Talking of Trains”, in Trains Illustrated, page 67:Less important lines of plain double track carrying a mixture of passenger and freight traffic cannot be given ultra-fast expresses, and where alternative routes exist, as for example between London and the West Riding, the specially high-speed trains must be restricted to one of them only.
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