1. sword fern any of several tropical ferns having more or less sword-shaped fronds including one from which the Boston fern developed
  2. sweet fern mat-forming lithophytic or terrestrial fern with creeping rootstocks and large pinnatifid fronds found throughout North America and Europe and Africa and east Asia
  3. seed fern an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae)
  4. hard fern any of several ferns of the genus Blechnum
  5. shield fern any of various ferns of the genera Dryopteris or Polystichum or Lastreopsis having somewhat shield-shaped coverings on the sori
  6. sword bean twining tropical Old World plant bearing long pods usually with red or brown beans; long cultivated in Orient for food
  7. wood fern any of various ferns of the genus Dryopteris
  8. wood-fern any of various ferns of the genus Dryopteris
  9. woodfern any of various ferns of the genus Dryopteris
  10. word form the phonological or orthographic sound or appearance of a word that can be used to describe or identify something
  11. swordfish large toothless marine food fish with a long swordlike upper jaw; not completely cold-blooded i.e. they are able to warm their brains and eyes: worldwide in warm waters but feed on cold ocean floor coming to surface at night
  12. swordsman someone skilled at fencing
  13. gold fern fern of West Indies and South America having fronds with bright golden-yellow undersides
  14. strap fern fern with long narrow strap-shaped leaves
  15. shirtfront the front of a shirt
  16. scented fern common perennial aromatic herb native to Eurasia having buttonlike yellow flower heads and bitter-tasting pinnate leaves sometimes used medicinally
  17. spider fern fern of North Africa and Azores and Canary Islands
  18. serpent fern tropical American fern with brown scaly rhizomes cultivated for its large deeply lobed deep bluish-green fronds; sometimes placed in genus Polypodium
  19. New York fern slender shield fern of moist woods of eastern North America
  20. short covering the purchase of securities or commodities by a short seller to close out a short sale