The definition of proper is truly what something is said or regarded to be. It means genuine or true. It also means suitable, appropriate, and of the required type.
proper termity castle
a proper uasage
If you mean the species of tree, it is not a proper noun. However, if you were to name someone or something "Birch" - it is a proper noun.
No, it is not. It is a noun. It can mean either a wheeled conveyance (wagon, train car) or bodily posture.
belonging to [as a proper function or part]
what is proper activities
ignorance can be overcome for proper understanding
Proper usage and pronunciation.
a proper uasage
proper termity castle
In the appropriate order.
an abundant number is less than the sum of its proper divisors
If you mean the species of tree, it is not a proper noun. However, if you were to name someone or something "Birch" - it is a proper noun.
No, it is not. It is a noun. It can mean either a wheeled conveyance (wagon, train car) or bodily posture.
belonging to [as a proper function or part]
to belong as a proper function or part
maybe you mean a 'proper noun'