THESAURUS
antonomasia, binomial nomenclature, biosystematics, biosystematy, biotype, blood, branch, brand, breed, cast, character, clan, class, classification, color, denomination, description, designation, family, feather, form, genotype, genre, glossology, grain, ilk, kidney, kin, kind, kingdom, label, line, lot, make, manner, mark, mold, nature, nomenclature, number, onomastics, onomatology, order, orismology, persuasion, phylum, place-names, place-naming, polyonymy, race, section, series, shape, sort, species, stamp, strain, stripe, style, subclass, subfamily, subgenus, subkingdom, suborder, subspecies, subtribe, superclass, superfamily, superorder, superspecies, systematics, taxonomy, terminology, the like of, the likes of, toponymy, tribe, trinomialism, type, variety
ROGET THESAURUS
Class
N
class, division, category, categorema, 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.