Roget's Thesaurus: Entry 75 (Class)

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#75. Class. -- N. class, division, category, categorema[obs], head, order, section; department, subdepartment, province, domain.

kind, sort, genus, species, variety, family, order, kingdom, race, tribe, caste, sept, clan, breed, type, subtype, kit, sect, set, subset; assortment; feather, kidney; suit; range; gender, sex, kin.

manner, description, denomination, designation, rubric, character, stamp predicament; indication, particularization, selection, specification.

similarity &c. 17.