I've a problem in the following text, please help me.
A shroud is a piece of cloth that a dead person's body is wrapped in before it is buried.
my problem is- is shroud a proper noun? And what kind of that is it? Conjunction? R. pronoun?
In this context, 'shroud' is a common noun, but not a proper noun. The Turin Shroud would be a proper noun as it is a specifically named item, but here you could refer to any shroud.
A proper noun names something that is unique - John, New York, Madison Square Garden, the Mona Lisa.
A common noun could be any one of many things like this - man, city, place, thing.