Most often, you would not. But if it is part of a title, then you would.
The telephone is a form of communication.
The AB Communication Company held its annual meeting.
Only if it is the first word in a sentence.
Yes, it is standard to capitalize the first word in a formal letter like "Dear John." This is done to show respect and proper formatting in written communication.
In "Sincerely yours," you should capitalize only the first letter of each word (Sincerely Yours).
You should capitalize the first letter of the sentence "Who is your favorite French artist?"
In "Yours truly," you capitalize the first letter of each word if you are using it as a complimentary close in a letter, as it is a formal sign-off.
no, not unless its a proper noun or adjective.
Yes, you should capitalize the first letter of each word in "Thank You" when writing a thank you card as it is a proper noun.
The capitalize() function in Python can be used to capitalize the first letter of a string. It returns a copy of the string with the first letter capitalized and all other letters in lowercase.
yes
Only Christmas should be capitalized, merry should not.
In APA style, capitalize the first letter of the first word of the title, as well as the first letter of any proper nouns in the title. For journal articles, capitalize the first letter of the first word of the title, the first letter of the first word of the subtitle (if present), and any proper nouns in the title. All other words in the title should be in lowercase.
Yes.