Chris Waigl wrote: >It's entirely unclear if they mean that "vs" should receive a period, >though, because all entries in NSOED end with a period. > > I'm sorry, I have to backpedal on this. I had looked under "vs", and found nothing, but didn't think to look under the letter V, where indeed "vs." with a period is given as an abbreviation for "versus". Chris Waigl