Mainly or mostly; used to show what is the most important reason or part. It points to the primary focus or purpose.
From *primary* plus the adverbial suffix *-ly*. *Primary* comes from Latin *primarius* 'of the first rank', from *primus* 'first'.
Whenever you say 'primarily', you’re quietly ranking causes or reasons. It’s a clue to what really matters in a long explanation. Good readers and listeners hunt for words like this to find the main point fast.
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