How are you today?

how Adverb

— The word "how" is a question word, to ask about the way something happens or the way people do things. How will we ever solve this problem? — The word "how" is used to tell about the way something happens or the way people do things. I know how we can solve this problem? This is how to make this machine work. — used to show that you feel strongly about something. How old he looks!

how Subordinator

— You use how to tell that something happens, is done, or is true. She told him how it wasn't fun anymore.

are Verb

— Are is the present tense, second person form of the verb be. Hello John, how are you? We are all happy. Are we there yet? John and Mary are playing. Are you all hungry?

you Pronoun

— Used instead of the name of the person being spoken to; it is a second-person pronoun. You are my best friend. Can I go to the shops with you? — Used to talk about anyone. You have to be 18 years old to see that film. She has problems with her eyes, and can't see you properly.

you Determinative

— Used before a word that means the person or people someone is talking to. You guys can leave now.

today Pronoun

— Today is the current day, the day that is happening now, the day between yesterday and tomorrow. Today is the first day of the rest of your life. I have class today. Today's meeting should be short. — Today is modern times; the present in general. Today we don't have many of the old problems but we have many new ones.