acronyms
Some words need to be capitalized; others do not. For every word to be capitalized in a dictionary would be confusing because one would not know which words they would need to capitalize in everyday usage.
Dictionary
Title capitalization rules:The First WordThe Last WordWords of More Than Three Letters (Sometimes more than four Letters)Words That Have Special Importance
Title capitalization rules:The First WordThe Last WordWords of More Than Three Letters (Sometimes more than four Letters)Words That Have Special Importance
The capitalization guide at the back of my dictionary lists 20 rules for capitalization.
Charleston is one
There are no words in the Scrabble dictionary using all of these letters. With a minimum of three letters: avo coax cox coxa juco oca ova vac vau vox
No they don't require to be capitalized.
Yes, historians start both words with capital letters.
Dictionary and encyclopedia. Both have thousand of words in them.
All words should be capitalized except the prepositions, conjunctions and articles. Words fewer than five letters are not capitalized. Example: The Sound of Music
Typically, only proper nouns, such as names of people, places, or brands, are capitalized in a dictionary. Other common nouns, adjectives, and verbs are usually not capitalized unless they are at the beginning of a sentence.