the meaning of a grammatical category or a form class, common to all forms showing the category or to all members of the form class, as in the meaning of number common to all Latin nouns or the meaning of singular common to all Latin singular noun and verb forms.
the part of the meaning of a linguistic form that it has by virtue of membership in a particular form class, as the past tense meaning of ate.
Origin of class meaning
First recorded in 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019