1. waste pipe a pipe through which liquid is carried away
  2. waste paper paper discarded after use
  3. wastebin a bin that holds rubbish until it is collected
  4. Asterope (Greek mythology) one of the 7 Pleiades
  5. musette pipe a small simple oboe
  6. windpipe membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi
  7. antipope someone who is elected pope in opposition to another person who is held to be canonically elected
  8. estoppel a rule of evidence whereby a person is barred from denying the truth of a fact that has already been settled
  9. water pipe an oriental tobacco pipe with a long flexible tube connected to a container where the smoke is cooled by passing through water
  10. osteopath a therapist who manipulates the skeleton and muscles
  11. asthenopia a tiredness of the eyes caused by prolonged close work by a person with an uncorrected vision problem
  12. vestibule a large entrance or reception room or area
  13. waist-deep up to the waist
  14. waist pack a small pouch (usually with a zipper) that attaches to a belt and is worn around the waist
  15. step up increase in extent or intensity
  16. astilbe any plant of the genus Astilbe having compound leaves and showy panicles of tiny colorful flowers
  17. exhaust pipe a pipe through which burned gases travel from the exhaust manifold to the muffler
  18. step-up the act of increasing something
  19. isotope atom with same atomic number, different number of neutrons
  20. stupid lacking or marked by lack of intellectual acuity