"Daydream" is one word when referring to the act of dreaming while awake or indulging in fanciful thoughts. It can also be used as a noun to describe a vision or fantasy. However, when used as a verb, it can be written as "day dream," but the single word form is more commonly accepted.
Two words - "one day".
Just one word.
'Good Day' is two words.
Day shift is two words
Race day is two words.
It is properly written ALL DAY - two words.
"Payday" is one word. It refers to the day on which an employee is paid for their work. When used as an adjective, such as "payday loan," it remains a single word.
The term "dreamcatcher" is typically written as one word. It is a compound word that combines "dream" and "catcher" to refer to the Native American object used as a talisman to protect against bad dreams. While some may write it as two separate words ("dream catcher"), the most common usage is as a single word.
Someone is one word when you are referring to a person.
well it is very hard to tell but truth is its one whole word
It is a compound word. Combination of birth and day.
Both one or two words can be used. "Someday" is the most popular, whereas "some day" is least popular.