plural
Quick Summary
In English grammar, a noun is a word that names a person, place, thing, or idea. Nouns can be singular or plural. The most common way to form a plural noun is by adding "-s" or "-es" to the end of the singular form. For example, "cat" becomes "cats," and "box" becomes "boxes".12
However, English has many exceptions to this rule. Some nouns have irregular plural forms that do not follow the standard pattern, such as "child" becoming "children" or "foot" becoming "feet". Additionally, some nouns, particularly those borrowed from other languages like Latin or Greek, retain their original plural forms (e.g., "datum" becomes "data," "phenomenon" becomes "phenomena"). Some nouns, like "fish" or "sheep," have the same form for both singular and plural. The formation of plurals can also depend on the ending of the word, such as nouns ending in "-y" or "-o".213
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