Front

our spoken, written, or signed words and the ways we combine them to communicate meaning

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language

Front

in a language, the smallest distinctive sound unit

Back

phoneme

Front

in a language, the smallest unit that carries meaning; may be a word or a part of a word (such as a prefix)

Back

morpheme

Front

in a language, a system of rules that enables us to communicate with and understand others

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grammar

Front

beginning at about 4 months, the stage of speech development in which the infant spontaneously utters various sounds at first unrelated to the household language

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babbling stage

Front

the stage in speech development, from about age 1 to 2, during which a child speaks mostly in single words

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one-word stage

Front

Beginning about age 2, the stage in speech development during which a child speaks mostly in two-word statements

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two-word stage

Front

impairment of language, usually caused by left-hemisphere damage either to Broca’s area or to Wernicke’s area

Back

aphasia

Front

early speech stage in which a child speaks like a telegram—“go car”—using mostly nouns and verbs

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telegraphic speech

Front

controls language expression—an area of the frontal lobe, usually in the left hemisphere, that directs the muscle movements involved in speech

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Broca's area