re1
rā,rē/
preposition
preposition: re
1.
in the matter of (used typically as the first word in the heading of an official document or to introduce a reference in an official letter).
"re: invoice 87"
synonyms: about, concerning, regarding, with regard to, relating to, vis-à-vis, apropos (of), on the subject of, with respect to, with reference to, in connection with
"a memo re the new alarm system"
about; concerning.
"I saw the deputy re the incident"
synonyms: about, concerning, regarding, with regard to, relating to, vis-à-vis, apropos (of), on the subject of, with respect to, with reference to, in connection with
"a memo re the new alarm system"
Origin