- a class of words or forms in a given language that have one or more grammatical features in common, as, in Latin, all masculine nouns in the nominative singular, all masculine singular nouns, all masculine nouns, or all nouns.
Origin of form class
First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- another term for part of speech
- a group of words distinguished by common inflections, such as the weak verbs of English
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