One
Yes, 'you' can be used either to refer to a singular person or as a collective pronoun to refer to more than one person.
"A lot" is two words when used to refer to a large number or quantity. For example, "There were a lot of people at the concert."
"Neither" is not an adjective; it is a pronoun or a determiner that is used to refer to each one of two people or things.
'Each' is used to refer to every one of two or more people or things, regarded and identified separately.
Plural nouns are words for two or more people or things.
Europe and Asia are two continents that consist of many countries. Both are on one major landmass, known as Eurasia, which is what people refer to. Eurasia is not a country and it is not a continent.
Some people refer to years as the year of our Lord. 1862 the year of our Lord.
One to one can refer to a multitude of things. It can refer to two functions within mathematics, Apple's personal training service, a personalized marketing strategy, or simply just the act of talking between one person and another.
Tipped HostessesNot usually. Depends on the restaurant, some places pool their tips and give the hostess a cut. Sometimes people will tip a hostess simply for seating them (though it's rare), and sometimes a hostess is also in charge of checking and returning coats and will get tipped for that (this is more common, though it's usually nothing more than a dollar or two).Don't count on making much from tips as a hostess.
The noun handout is one word. (gift or charity)The verb form is to "hand out" or distribute.
"Another" is one word. It is used to refer to an additional or different person or thing.
To which two theories do you refer?