Child Language Acquisition - Semantic Development

Overextension - child uses one word and uses it to describe other things that aren't normally part of that word's meaning 'dad' used for every man she sees

Underextension - word used to label is 'reduced' to include only part of its normal meaning 'man' only for the child's dad, no other man is included

Aitchison's Developmental Stages

Labelling - linking…