Dictionary.com

QUIZZES

QUIZ YOURSELF ON “ITS” VS. “IT’S”!

Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of class

First recorded in 1590–1600; earlier classis, plural classes, from Latin: “class, division, fleet, army”; singular class back formation from plural

Definition for class (2 of 2)

class.

abbreviation

classic.
classical.
classification.
classified.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for class

class
/ (klɑːs) /

noun

verb

to have or assign a place within a group, grade, or class
classable, adjectiveclasser, noun
C17: from Latin classis class, rank, fleet; related to Latin calāre to summon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for class

class
[ klăs ]

n.

A taxonomic category ranking below a phylum or division and above an order.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for class

class
[ klăs ]

A taxonomic category of organisms ranking above an order and below a phylum or division. In modern taxonomic schemes, the names of classes end in -phyceae for the various groups of algae, -mycetes for fungi, and -opsida for plants (as in Liliopsida, the class of plants also termed monocotyledons). The names of classes belonging to phyla of the animal kingdom, however, are formed in various ways, as Osteichthyes the bony fishes, Aves, the birds, and Mammalia, the mammals, all of which are classes belonging to the subphylum Vertebrata (the vertebrates) in the phylum Chordata. See Table at taxonomy.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for class (1 of 2)

class

A group of people sharing the same social, economic, or occupational status. The term class usually implies a social and economic hierarchy, in which those of higher class standing have greater status, privilege, prestige, and authority. Western societies have traditionally been divided into three classes: the upper or leisure class, the middle class (bourgeoisie), and the lower or working class. For Marxists, the significant classes are the bourgeoisie and the proletariat (see also proletariat).

Cultural definitions for class (2 of 2)

class

In biology, the classification beneath a phylum and above an order. (See Linnean classification.)

Mammals, reptiles, and insects are classes.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with class

class

see cut class.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
What's This Word?