whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs | education imparted in a series of lessons or meetings |
| elegance in dress or behavior |
| a collection of things sharing a common attribute |
| people having the same social, economic, or educational status |
| (biology) a taxonomic group containing one or more orders |
| a body of students who are taught together |
| a body of students who graduate together |
| a league ranked by quality |