1. poster paint pigment mixed with water-soluble glutinous materials such as size and egg yolk
  2. posterity all future generations
  3. posterboard a cardboard suitable for making posters
  4. plaster saint a person (considered to be) without human failings
  5. foster-parent a person who acts as parent and guardian for a child in place of the child's natural parents but without legally adopting the child
  6. foster parent a person who acts as parent and guardian for a child in place of the child's natural parents but without legally adopting the child
  7. poster board a cardboard suitable for making posters
  8. booster unit the first stage of a multistage rocket
  9. lobster plant tropical American plant having poisonous milk and showy tapering usually scarlet petallike leaves surrounding small yellow flowers
  10. bitter pignut hickory of the eastern United States having a leaves with 7 or 9 leaflets and thin-shelled very bitter nuts
  11. oyster plant Mediterranean biennial herb with long-stemmed heads of purple ray flowers and milky sap and long edible root; naturalized throughout United States
  12. counterpoint an element, idea, or argument used to create a contrast
  13. poste restante a notation written on mail that is to be held at the post office until called for (not in the United States or Canada)
  14. poster child a child afflicted by some disease or deformity whose picture is used on posters to raise money for charitable purposes
  15. posturing adopting a vain conceited posture
  16. pestering causing irritation or annoyance
  17. posteriority the quality of being toward the back or toward the rear end
  18. postulant one submitting a request or application especially one seeking admission into a religious order
  19. postern a small gate in the rear of a fort or castle
  20. postpone hold back to a later time