A proper noun is a name and always starts with a capital letter (ex: Freddie, Susan, Toronto, California). A pronoun would be a word used to replace a noun (ex: he, she, it, they). Common pronous include: I, you, he, she, they, and it. I don't know if this answers your question or not, but hopefully it helps.
A Ph.D. abbreviation can only be used in conjunction with a proper name. This is an example of a correct rule when using abbreviations.
Abbreviations in addresses should be capitalized when they are a part of a proper noun, such as when they represent the name of a street or building (e.g., "123 Main St."). However, if the abbreviation is not part of a proper noun, it should be in lowercase (e.g., "apt. 24").
The state abbreviations of (ME) isMAINE
Is it true Abbreviations of the name of the months and the name of the state are commonly used in business letter headings
ID
The proper abbreviation to send someone a copy of a memo is 'cc:' (type in the person's name and if there is more than one person that gets a 'cc' (meaning carbon copy which is old style) then tick off each name it is suppose to go too.
It is two abbreviations combined. Its full name is International Criminal Police Organization. From that, International and Police are partially used to get Interpol.
Apostrophe.
Seaman apprentice
It depends on the abbreviation. For example you do not capitalize the word "ad" or "advert" as an abbreviation for advertisement nor do you capitalize etc. as short for etcetera. However, you should capitalize some abbreviations like Dr., Mr., or Ms.
Some elements have weird abbreviations because they are derived from their Latin or Greek names. The abbreviations are often based on the first letter or first two letters of the element's name in a different language. This can lead to unconventional abbreviations that may not make immediate sense in English.
Juris Doctor - an attorney.