落

là
  1. to leave out
  2. to be missing
  3. to leave behind or forget to bring
  4. to lag or fall behind

CEDICT

Homographs

落 lào colloquial reading for 落 luò in certain compounds
落 luò
  1. to fall or drop
  2. (of the sun) to set
  3. (of a tide) to go out
  4. to lower
  5. to decline or sink
  6. to lag or fall behind
  7. to fall onto
  8. to rest with
  9. to get or receive
  10. to write down
  11. whereabouts
  12. settlement