About, on a memo (2,2)

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2,2

in re

'about on a memo' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for in re that I've seen before include "Concerning (L)" , "With regard to" , "In the matter of (Lat.)" .)

I've seen this clue in The Washington Post and The New York Times.

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