"Wheelchair" is a compound word, not hyphenated.
Yes, wheelchair is a noun, a singular, common, concrete, compound noun; a word for a chair constructed with wheels, a mobility device; a word for a thing.
Yes
The guy left the hospital in a wheelchair.
No It's not a compound word
No, the word wheelchair is a singular, common, concrete noun; a word for a thing.A possessive noun is a word that indicates that something in the sentence belongs to that noun. A possessive noun is indicated by an apostrophe s ('s) at the end of the noun (or just an apostrophe at the end of the plural noun that ends with an s).The possessive form of the noun wheelchair is wheelchair's.Example: The wheelchair's occupant was not injured in the mishap.
Yes, "roll-in shower" should be hyphenated as it is a compound adjective describing a type of shower that is accessible for wheelchair users.
The contraction (not a compound word) is doesn't.
Upwards is a compound word.
There is no compound word.A compound word is a word like bus-stop.Husban is spelt like this husband
Upstairs is a compound word, so it is one word.
The compound word for pitch is "pitchfork".