Encyclopedia Britannica - oldest English-language encyclopaedia still in print
Ah, what a lovely question! "Encyclopedia" is a common noun because it is a general word used for any reference work that contains information on various subjects. Just like happy little trees in a painting, common nouns are all around us, adding color and detail to our language.
By itself, it is a common noun. If it is the name of a specific one, then it is a proper noun.
Estrumate is a common brand.
When a brand name comes into common usage the brand name has been genericised. Owners of brand names work hard to prevent this from happening.
Sweet'N Low is the most common brand of saccharin. Saccharin is the common name otherwise. Its chemical name is benzoic sulfilimine.
yes the last name does come first in an encyclopedia
No, Tinkertoy is a proper noun because it is the name of a brand name toy. The word toy is a common noun.
Malaysia, China and Vietnam are common
Hemoccult Test is the brand name. The generic name of the test is guaiac test. Seroccult is another common brand name.
The common nouns are shoe, company, manufacturer, or brand.
The person who compiles an encyclopedia is called an editor. They oversee the content, structure, and accuracy of the information included in the encyclopedia.
One common brand name is Mega Balls.... (My Balls)