Soak up is a common phrase used to describe the absorption of liquid into a sponge or cloth. However, there are a variety of different words that can be used as synonyms for soak up. One option is to use absorb, which means to take in or assimilate. Another possible synonym is to use imbibe, which means to consume or drink. Other options include assimilate, immerse, steep, drench and saturate. No matter which word is chosen, the meaning will remain the same: to take in or absorb liquid. So next time you want to switch things up, try using one of these synonyms instead of soak up.