[Vetgirig]

cEV = chip EV - the chips expected value
$EV = money EV - the money expected value

In cash games cEV equals $EV - but in turnaments near the bubble and ITM cEV differs a bit from $EV like in the example in previous reply. Sometimes its better to fold the best hand because it means one will move up in prize money i.e. then cEV != $EV.