A class is a number or body of persons or objects having common pursuits, purposes, attributes, or characteristics. A caste is hereditary; a class may be independent of lineage or descent; membership in a caste is supposed to be for life; membership in a class may be very transient; a religious and ceremonial sacredness attaches to the caste, as not to the class. The rich and the poor form separate classes; yet individuals are constantly passing from each to the other; the classes in a college remain the same, but their membership changes every year. We speak of rank among hereditary nobility or military officers; of various orders of the priesthood; by accommodation, we may refer in a general way to the higher ranks, the lower orders of any society. Grade implies some regular scale of valuation, and some inherent qualities for which a person or thing is placed higher or lower in the scale; as, the coarser and finer grades of wool; a man of an inferior grade. A coterie is a small company of persons of similar tastes, who meet frequently in an informal way, rather for social enjoyment than for any serious purpose. Clique has always an unfavorable meaning. A clique is always fractional, implying some greater gathering of which it is a part; the association breaks up into cliques. Persons unite in a coterie through simple liking[107] for one another; they withdraw into a clique largely through aversion to outsiders. A set, while exclusive, is more extensive than a clique, and chiefly of persons who are united by common social station, etc. Circle is similar in meaning to set, but of wider application; we speak of scientific and religious as well as of social circles.

Prepositions:

A class of merchants; the senior class at (sometimes of) Harvard; the classes in college.

CLEANSE.

Synonyms:

brush,dust,purify,scour,sponge,wash,
clean,lave,rinse,scrub,sweep,wipe.
disinfect,mop,

To clean is to make clean by removing dirt, impurities, or soil of any kind. Cleanse implies a worse condition to start from, and more to do, than clean. Hercules cleansed the Augean stables. Cleanse is especially applied to purifying processes where liquid is used, as in the flushing of a street, etc. We brush clothing if dusty, sponge it, or sponge it off, if soiled; or sponge off a spot. Furniture, books, etc., are dusted; floors are mopped or scrubbed; metallic utensils are scoured; a room is swept; soiled garments are washed; foul air or water is purified. Cleanse and purify are used extensively in a moral sense; wash in that sense is archaic. Compare [AMEND].

Antonyms:

befoul,besmirch,contaminate,debase,deprave,soil,stain,taint,
besmear,bespatter,corrupt,defile,pollute,spoil,sully,vitiate.