Oh, dude, "twin" is not a proper noun. It's just a regular ol' common noun. Proper nouns are like Beyoncé or McDonald's, you know, the fancy ones with capital letters at the start. Twin is more like, "Hey, look, it's another set of twins!" Just your average, run-of-the-mill noun.
The word twin is not necessarily plural, for example, I have a twin bed. I have a twin brother. Singular in both cases.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
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
The proper noun Twincicle refers either to a Christmas light set or a twin Popsicle. The proper noun Twin Cycle is a motorcycle company.
The word twin is not necessarily plural, for example, I have a twin bed. I have a twin brother. Singular in both cases.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Pencil proper or common noun
Exxon is a proper noun
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
Proper noun
It is a proper noun, because it is the name of a specific thing.
Proper noun or common noun
what is trix