No the word muddy is not a noun at all.
The word muddy is an adjective.
Yes the word question is a singular noun. The plural noun is questions.
The noun mailbox is the singular form; the plural is mailboxes.
The singular noun is "louse" and the plural noun is "lice."
The noun sash is the singular form. The plural noun is 'sashes'
No, clowns is a plural noun. The singular form is clown.
noun = mud The noun form for the adjective muddy is muddiness.
Yes. Hay is a singular noun. A Singular noun means one item only. So technically, hay is a singular noun.
The noun 'theory' is a singular noun. The plural noun is 'theories'.
The noun 'mice' is the plural form of the singular noun 'mouse'.
Yes the word question is a singular noun. The plural noun is questions.
The noun mailbox is the singular form; the plural is mailboxes.
Feet is a plural noun. Foot is a singular noun.
The noun juggler is a singular noun. The plural noun is jugglers.
The noun school is the singular form.The plural noun is schools.
The noun 'fun' is a singular non-count noun, it has no plural form.
The singular noun is "louse" and the plural noun is "lice."
The noun family is the singular form; the plural form is families.