This doesn’t really need an explanation. Well, in case it does… Please see useful stuff below 🙂

beg beginning
bet between
BP back post
cc contrasting colour
ch chain
chlp/ch lp chain loop
ch-sp chain space
CL cluster
dec decrease
FL front loop
FP front post
inc increase
MC main colour
p picot
pc popcorn
rem remain/remaining
rep repeat
rev sc reverse sc
rnd(number) round (number)
RS right side
2tog 2 stiches together (prefixed by type of stitch, eg sc2tog)
sk skip
sp space
st stitch
tog together
WS wrong side
yo/yoh yarn over/yarn over hook