No. Although in other languages the masculine plural is used for mixed-gender groups, that is not the case in English. The accepted manner is to address the audience as 'ladies and gentlemen'.
The relationship between the speaker, the speaker's style of address, and the audience's expectations
The relationship between the speaker, the speaker's style of address, and the audience's expectations
gentlemen only ladies forbidden
Use the term Ms. when unsure of marriage status.
This term refers to the impression that the audience receives of the speaker's character.
"Mrs" is the term of address used for a married woman. "Miss" is used for unmarried women and girls.
A writer's audience is readers that the writer intends to reach.
The term is one word "gentlemen" when used to mean an assembled group of men (e.g. ladies and gentlemen), or male individuals in general. The two words "gentle men" has an entirely different meaning.
It seems only if your familiar, as 'dear' is a familiar term.
The term "audience of one" is, first, not a term. "Audience of one" is a phrase. The phrase was made popular for having been used in a song, and, later, as an album title. Rage Against the Machine, a rock band, recorded the song, "Audience of One". They wrote the song as a criticism of current pop music. Sadly, there is no one definition of the phrase.
The term address means the physical location of something. In email, the term address means the name of the email account where you receive emails.
Purpose