Grammar
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.
Alexi Bishop lives in Seattle, Washington, a city of the Northwest.
All other nouns are common nouns. They are not capitalized.
Our family has always wanted to live in the mountains or on the coast.
Capitalize the first word and all important words in a title.
The Wind in the Willows
Capitalize days of the week and months of the year.
Class meets on Mondays in May.
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.
The envelope went to Ms. M. R. Ryan, 1410 Montgomery St., Raleigh, NC 27607.
It was postmarked Wed., Sept. 27.