General Knitting Abbreviations:

MC = main color
CC = contrast color
dpn = double pointed needles
CO = cast on
st(s) = stitch(es)
rep = repeat
k = knit
p = purl
yo = yarnover
ndl = needle
rnd = round
inc = increase
inc’d = increased
beg = beginning
cont = continue
dec = decrease
dec’d = decreased
yf = yarn forward under needle
sl = slip
no. = number
BO = bind off
wyif = with yarn in front
wyib = with yarn in back
k2tog = knit 2 stitches together
pwise = purlwise
kwise = knitwise
RS = right (public) side of work
WS = wrong side of work
ssk = slip, slip, knit the slipped sts tog