An Encylopedia Britannica Company

re

1 re /ˈreɪ/ noun
1 re
/ˈreɪ/
noun
Britannica Dictionary definition of RE
[noncount] music
: the second note of a musical scale
2 re /ˈreɪ/ /ˈriː/ preposition
2 re
/ˈreɪ/ /ˈriː/
preposition
Britannica Dictionary definition of RE
formal
: on the subject of : regarding or concerning used in business and legal writing and e-mail before a word or phrase that states the subject you will be discussing