What Does S/B & B/O etc Mean IN PC Section?

I keep seeing S/B & B/O etc in the Price check forum and I'm not sure what it means

Read the FAQ, which is a sticky note at the top of the Sell forum:
http://www.guildwarsguru.com/forum/s...php?t=10047380

c/o = Current Offer
s/o = Starting Offer
b/o = Buy Out
IGN = In Game Name
WTS = Want To Sell
WTB = Want To Buy
Reserve = Price that must be reached before the item is sold

s/b = starting bid.

I'll just expand on the Reserve:
Seller reserves the right not to sell the item if that price isn't matched or exceeded.

Thanks a lot