Senor
That doesn't seem to be a Spanish word. Check the spelling. "Soltera" is the female form of unmarried.
Señorita is the term for "young woman" or "unmarried woman." It is always feminine. The masculine counterpart is Señor, but that would be a formal address to any male as in "mister" in english, whether or not the person is married.
The 'We' form (known as the 'Nosotros' form in Spanish) for Conocer is "Conocemos".
The plural form of "conductor" in Spanish is "conductores."
The singluar form of "fruit" in Spanish is fruta, and the plural form is frutas.
Signorina is an Italian word that translates to "miss" or "young lady" in English. It is used as a respectful way to address an unmarried woman or a girl.
Misses
That doesn't seem to be a Spanish word. Check the spelling. "Soltera" is the female form of unmarried.
"Guten Tag Frau (name)" is the correct form of address.
The term "Miss" is a polite form of address, and before a full name (e.g. Miss Mary Smith) indicates that the woman is unmarried. This comes from the courtesy title "Mistress" (which has a different modern connotation).
Miss. is an abbreviation, it is polite title of an unmarried woman or girl, usually used before the surname or sometimes alone in direct address and comes form the word 'mistress'.There is a common misconception that Ms. is the abbreviation. In fact Ms. is a term that came about during the women's movement that gave women a title that did not define their marital status. It is pronounced "Mizz". Miss. refers to unmarried ladies.
spinster - especially if elderly, or Miss will be the form of address to a young unmarried woman bachlorette
Traditionally, "Mister (Mr)" was a title used to address married men, while "Master (Mstr)" was used to address unmarried men. Over time, the use of "Mister" expanded to include unmarried men, and "Master" became restricted to boys and young men who had not yet entered society. Even this is quite rare today, and is mostly used in extremely formal written correspondence.
You can address an unmarried woman as "Ms." just as well as a married woman. In a situation where you are unsure of the marital status, "Ms." is a safe form of address, and avoid "Miss" and "Mrs."
An ambassador is addressed as His Excellency or Her Excellency, unless they have a royal title. In the case of a royal title, it can be the ambassador who determines their preferred form of address.
'Reverend' is used as a title or form of address to members of the clergy.
Doctor [Last Name]. Generally, address anyone with a PhD as Doctor [Last Name], unless they have a job-specific title that is commonly used as a form of address, Professor [Last Name], Colonel (or other rank) [Last Name], Senator [or other government title]. Do not use corporate title as a form of address (e.g., do not use "Director [Last Name]")