Build Sth Building Meaning Work Make Stronger Bigger

Meaning: to work at something and make it get stronger or bigger

• build up sth My son's going to the gym to build up his muscles. He wants to look good on the beach this summer.
  
  
• build sth up Our market share has increased a lot over the last year, and you've all done your part to help build it up.
  
  
• be building up I'm saving as much as I can, and my bank account is building up nicely.