That’s a proper noun. Leroy. And so is Lizard Monster, that’s what I am. Leroy the Lizard Monster! I live in a tree. That is a common noun. And I love sleeping in my bed. Bed! That’s also a ...

This paper studies the processes whereby small children (17-24 mo.) learn common and proper nouns and learn how English distinguishes between them. Our thesis is that within certain classes of objects ...