adverb
secondly
SEH-kuhnd-lee
adverb
1
Used to introduce the second point in a list or argument.
"Firstly, the plan is too expensive; secondly, it will take too long."
How to Use Secondly
Learner’s notesIn plain EnglishA word used to mark your second point when listing reasons or steps.
Common pairings
firstly...secondly
secondly, I would argue
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Firstly, the plan is too expensive; _____, it will take too long.
Etymology
From "second" plus the adverb suffix "-ly."