Communicative Competence

Proto Word

Pre- Verbal Stage

Reduplicated babbling

Variegated babbling

Holophrastic Stage

Non-Verbal Communication

Reduplication

Diminutives

Substitution

Assimilation

Deletion

Consonant cluster reduction

Two word stage

Vocabulary spurt

Telegraphic stage

Content words

Gramatical words

Post telegraphic stage

Operant conditioning

Positive reinforcement

Language Acquisition Device

Tabula Rasa

Universal Grammar

Virtuous errors

Cognitive development

LASS
Language Acquisition Support System

Scaffolding

Egocentric

Object permanence

CDS
Child directed speech

Expansion

Recast

Mitigated imperatives

IRF Structure
Initiation, Response, Feedback

Instrumental function

MKO
More knowledgeable other

ZPD
Zone of proximal development

Usage based linguistics

Overextension

Underextension

Hypernym

Homonym

Bound morphemes

Unbound or free morpheme

Superlative

MLU
Mean length of utterance

Copula verb