Common and Proper Nouns


The names of particular persons, places, and things are proper nouns. Capitalize the first word and each important word of a proper noun.


All other nouns are common nouns. They are not capitalized.


Capitalize the first word and all important words in a title.


Capitalize days of the week and months of the year.


Capitalize the first letter of an abbreviated proper noun. Abbreviations often occur in addresses, titles, and initials in names, and names of days and months. Most abbreviations end with a period.



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