Meaning of “firstly” in the English Dictionary

british dictionary

"firstly" in British English

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firstlyadverb

uk /ˈfɜːst.li/ us /ˈfɝːst.li/ also first

B2 used to refer to the first thing in a list:

There are two very good reasons why we can't do it. Firstly, we don't have enough money, and secondly, we don't have enough time.

More examples

  • I want two things from my boss - firstly, a pay rise, and secondly, a longer contract.
  • There are three factors to take into account: firstly cost, secondly time, and thirdly staff.

(Definition of “firstly” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)