上天

shàngtiān
  1. Heaven; Providence; God
  2. the sky above
  3. to fly skywards
  4. (euphemism) to die; to pass away
  5. the previous day (or days)

CEDICT

euphemistic

Entry Composition

1 上 shàng
  1. (bound form) up; upper; above; previous
  2. first (of multiple parts)
  3. to climb; to get onto; to go up
  4. to attend (class or university)
  5. (directional complement) up
  6. (noun suffix) on; above
2 天 tiān
  1. day
  2. sky
  3. heaven