When children fail to use a noun to name a relevant event or object they are:
A)expanding.
B)recasting.
C)overextending.
D)underextending.

Question

Quizplus · Accepted Answer

Underextension is the tendency of children to use words more restrictively than adults do. Therefore, if children fail to use a noun to name a relevant event or object, it means that they are underextending the use of that noun.

When Children Fail to Use a Noun to Name a Relevant