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English definition of “firstly”

firstly

adverb     /ˈfɜːstli/
B2 used to introduce the first idea, reason, etc in a series: The aim of this activity is firstly to have fun, and secondly to keep fit.First and firstly
(Definition of firstly adverb from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “firstly” in other dictionaries

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