It depends. It can refer to any event similar to the famous one, in which case it isn't proper. But if you're dealing specifically with the Hitler Holocaust, it's proper.
When talking about the murder of the Jews in WWII, then yes it is considered a proper noun with a capital H. When mentioning something in passing then it is just a normal word. For example:
Many Jews died in concentration camps that epitimied the attrocities of the Holocaust.
The end of the world is a holocaust that cannot be averted.
if you are talking about if it is a common noun or a proper noun, it is a proper noun.
Samantha is a proper noun when used as a name for a specific person.
"Karen" is a proper noun because it refers to a specific person's name.
The noun Lisbon is a proper noun, the name of a specific place.A proper noun is always capitalized.
The noun 'Namib" is a proper noun, the name of a specific desert, the name of a specific place.A proper noun is always capitalized.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Pencil proper or common noun
No, it is not. It is a noun.
Exxon is a proper noun
proper noun
Holocaust in this term is used as an adjective describing the noun denial.A noun functioning as an adjective to describe another noun, called an attributive 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
Proper noun
It is a proper noun, because it is the name of a specific thing.
Proper noun or common noun
what is trix