All About the Word 'All'

proper - adj. (grammar) exactly correct

singular - adj. (grammar) showing or indicating no more than one person or thing

plural - adj. (grammar) showing or indicating more than one person or thing

noun - n. a word that is the name of something (such as a person, animal, place, thing, quality, idea, or action) and is typically used in a sentence as subject or object of a verb or as object of a preposition