What does "Re:" in a business letter mean?
https://ell.stackexchange.com/questions/13290/what-does-re-in-a-business-letter-mean
Feb 27, 2015 · 3 Answers. Sorted by: 16. Wiktionary lists re as a preposition that means “About, regarding, with reference to; especially in letters and documents”, while OED1 (1914) says: Re …
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