Best Answer: HW = highest weight SW: starting weight LW: Lowest weight CW= current weight GW1- GW3 : (Goal Weight) are 3 mini goals the person set for themselves as small milestones.UGW= Undergoal weight (this is usually under healthy weight, and usually used in eating disorder sites.W: 146 lbs SW: 132 lbs CW: 127.2 GW1: 125 lbs GW2: 120 lbs GW3: 115 lbs UGW: 110 lbs Disregard the weight but I don't know what HW..and all those mean.