re

Từ điển Oxford Advanced Learner 8th

▪ I. re 1 [re] BrE [reɪ] ; NAmE [reɪ]
= ↑ray (⁴)
 
▪ II. re 2 [re] BrE [riː] NAmE [riː] preposition
used at the beginning of a business letter, etc. to introduce the subject that it is about; used on an email that you are sending as a reply
•Re your letter of 1 September…
•Re: travel expenses

• Từ đồng nghĩa / Synonyms:
  ray, Ra, Re, rhenium, atomic number 75