Abbreviations In Formal Letters
asap = as soon as possible
cc = carbon copy
enc = enclosure
pp = per procurationem (This Latin phrase means that you are signing the letter on behalf of somebody else.)
ps = postscript (This abbreviation is used to introduce afterthoughts that are added after the signature.)
pto = please turn over (This abbreviation is used to make it clear that the letter continues on the other side of the page.)
RSVP = please reply
