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Definition of superfast adjective from the Oxford Advanced Learner's Dictionary

superfast

adjective
 
/ˈsuːpəfɑːst/
 
/ˈsuːpərfæst/
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  1. extremely fast
    • a superfast broadband connection
    • They will be introducing new, superfast passenger trains.
ripple effect
noun
 
 
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Change, cause and effect
C2
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