A common noun is a noun that signifies a non-specific member of a group.
(http://www.sil.org/linguistics/GlossaryOfLinguisticTerms/WhatIsACommonNoun.htm 19.09.06)
A common noun is a noun that signifies a non-specific member of a group.
(http://www.sil.org/linguistics/GlossaryOfLinguisticTerms/WhatIsACommonNoun.htm 19.09.06)