Hanukkah is a proper noun.
Hanukkah can be used as an adjective or a noun.
Hanukkah is observed for eight nights and days.
No, it is a proper noun. It is a Jewish religious holiday (calendar date varies).
Perhaps you mean 'Hanukkah' (also spelled Hanukah or Chanukah), the eight-day Jewish festival of lights, which is a proper noun, the name of a specific holiday.
"... and Happy Hanukkah!"
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Pencil proper or common noun
proper noun
Exxon is a proper noun
Yes, the word 'Ali' is a proper noun, the name of a person.A proper noun is the name or title of a specific person, place, or thing.A proper noun is always capitalized.
proper noun