a prefix, occurring originally in loanwords from Latin, used with the meaning “again” or “again and again” to indicate repetition, or with the meaning “back” or “backward” to indicate withdrawal or backward motion: regenerate; refurbish; retype; retrace; revert.
Re, in contexts such as re your letter, your remarks have been noted or he spoke to me re your complaint, is common in business or official correspondence. In general English with reference to is preferable in the former case and about or concerning in the latter. Even in business correspondence, the use of re is often restricted to the letter heading
in the matter of: used esp in bankruptcy proceedings
Word Origin for in re
C17: from Latin
British Dictionary definitions for re (9 of 10)
indicating return to a previous condition, restoration, withdrawal, etcrebuild; renew; retrace; reunite
indicating repetition of an actionrecopy; remarry
Word Origin for re-
usage for re-
Verbs beginning with re- indicate repetition or restoration. It is unnecessary to add an adverb such as back or again : This must not occur again (not recur again); we recounted the votes (not recounted the votes again, which implies that the votes were counted three times, not twice)
A very rare, dense, silvery-white metallic element with a very high melting point. It is used to make catalysts and electrical contacts. Atomic number 75; atomic weight 186.2; melting point 3,180°C; boiling point 5,627°C; specific gravity 21.02; valence 1, 2, 3, 4, 5, 6, 7. See Periodic Table.