立功

lìgōng
  1. to render meritorious service (one the three imperishables 三不朽 sānbùxiǔ)
  2. to make worthy contributions
  3. to distinguish oneself

CEDICT

Entry Composition

1 立 lì
  1. to stand
  2. to set up
  3. to establish
  4. to lay down
  5. to draw up
  6. at once
  7. immediately
2 功 gōng
  1. meritorious deed or service
  2. achievement
  3. result
  4. service
  5. accomplishment
  6. work (physics)