Nouns

(n)class, category, familya collection of things sharing a common attribute“there are two classes of detergents”
(n)class, form, grade, coursea body of students who are taught together“early morning classes are always sleepy”
(n)class, stratum, social class, socio-economic classpeople having the same social, economic, or educational status“the working class”, “an emerging professional class”
(n)course, course of study, course of instruction, classeducation imparted in a series of lessons or meetings“he took a course in basket weaving”, “flirting is not unknown in college classes”
(n)class, divisiona league ranked by quality“he played baseball in class D for two years”, “Princeton is in the NCAA Division 1-AA”
(n)class, yeara body of students who graduate together“the class of '97”, “she was in my year at Hoehandle High”
(n)class(biology) a taxonomic group containing one or more orders
(n)classelegance in dress or behavior“she has a lot of class”

Verbs

(v)classify, class, sort, assort, sort out, separatearrange or order by classes or categories“How would you classify these pottery shards — are they prehistoric?”