A means or device that keeps something erect, stable, or secure
(Noun)
Synonyms:
  1. banks
  2. coasts
  3. sands
  4. strands
  5. supports
  6. margins
  7. borders
  8. brims
  9. props
  10. lands
  11. seasides
  12. braces
  13. seashores
  14. brinks
  15. buttresses