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Uses two-word utterances

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Vocabulary spurt starts

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First word spoken

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Uses gestures, comprehension appears

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Change from universal linguist to language specific listener

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Babbling begins

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Understands first word

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Cooing begins

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Crying

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Example: Usually, you wouldn't talk to your mom the same way you would talk to your friends at school.

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Knowing what language to talk to, to the appropriate person.

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Example: The lactation nurse was a big help <-- (morpheme) in getting the baby to latch on.

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The structure and construction of words. Morphemes refer to roots, prefixes, and affixes.

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Example: The B in bottle sounds different than the B in baby.

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How sounds are used in different languages.

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Example of a semantic: man and boy. Biologically, the two are the same but have a great difference in age.

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How words and sentences may mean the same thing but not really "mean the same thing."

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Example of a correct syntax: People who text and drive are dangerous to other drivers.
Example of an incorrect syntax: Texting and driving while being people is dangerous to other drivers.

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How words are formed to create sentences that actually make sense