Locking up and Rack up

Rack up and locking up are semantically related. in obtain topic. In some cases you can use "Rack up" instead a verb "Locking up", when it comes to topics like achieve, obtain or receive.

Rack up verb - To gain (as points or runs in a game) as credit towards one's total number of points.

Locking up and rack up are semantically related. Sometimes you can replace term "Locking up" with "Rack up", this phrasal verbs are similar.