They read pretty well. There's a bit of awkwardness in the first three, but overall, they're understandable.
Here are what I found when I searched online for definitions:
http://www.englishdaily626.com/grammar.php?014
Common nouns are names for people, things, and animals which have regular shapes and boundaries.
Collective nouns are names for people or things which have their members.
Material nouns are names for gas, liquid, and solid which don't have regular shapes and boundaries.
Proper nouns are names for unique people, cities, and countries.
Abstract nouns are names for what we cannot see, smell, taste, hear and feel.
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Hello, thank you for your help.
I have written down the definitions of kinds of nouns in my own way. Do you think my explanations or definitions are plausible?
2 answers
Life is full of choices, so I must learn to make good ones.