What's up with 're'?

Posted by June on May 19, 2025
LABELS: GRAMMAR

A lot of language experts will tell you to avoid the word “re,” as in, “I’d like to speak to you re scheduling.” It’s pretentious, they say, to use this Latin derivative instead of good old plain English — it’s “tasteless as a gold toothpick,” according to Theodore Bernstein’s 1965 guide “The Careful Writer.”  All of us outside the legal profession should “leave this one to the lawyers,” he wrote.

Way ahead of you, Bernstein and friends. I’ve been avoiding “re” my whole life. But unfortunately, I can’t claim that my motive has been to eschew pretentiousness, humbly sidestepping every opportunity to show off my deep knowledge of this preposition and its Latin origins.

No, I avoid it because I’ve never understood “re” well enough to even feign pretentiousness. I avoid “re” not because I’m down to earth but because I’m downright intimidated.

Is it “re:” with a colon? Is the R capitalized? Can you use it in the body of a letter or email, or only in the header or subject line? If it’s an abbreviation of “regarding,” does it need a period at the end, or does a colon preclude the need for a period? And why do you sometimes see “in” before “re”? Wouldn’t that be redundant?

The answers to all these questions are surprising — at least to me. For starters “re” is not an abbreviation for “regarding.” It’s a preposition — a real word like “at,” “of” or “with.” It’s defined not as “regarding” but as “with regard to” or “in the matter of,” which makes it a subtle shade different from “regarding” in some uses.

“Re” doesn’t even share the same roots as “regarding.” It’s from a Latin noun, “res,” which meant “thing” or “matter.” That’s a clue why “in” is sometimes used before “re.” It’s like saying “in the matter of.” But the way Latin grammar worked, the “in” may be implied, anyway. So it’s hard to know whether “in re” or just “re” better captures “res” in what’s called the Latin “ablative” case. At least that’s the assessment of someone who gave up after half a day trying to understand Latin noun cases. (Ahem.)

What I do know after half a day buried in books is that, in English, the “in” is optional. One of the definitions for the preposition “re” is “in re” — that is, they mean the same thing. So you can choose.

Here’s more of what I learned about “re” in my recent column.