If we turn “meaning, map, watch, mouse, foot, deer” into its plural form, we get “meanings, maps,watches, mice, feet, deer”. As demonstrated, the same plural morpheme is realized by different forms in different nouns. Although the forms are different, they serve the same grammatical meaning: indicating plurality. Those different forms of plurality (-s, -es, -i, -ee, Ø) are called _____________ of the plural morpheme.