Screening for Speech and Language Delay in Preschool Children: Table 1. Definitions of Terms

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Term	Definition
Articulation	The production of speech sounds.
Dysfluency	Interrupted flow of speech sounds, such as stuttering.
Expressive language	The use of language to share thoughts, protest, or comment.
Language	The conceptual processing of communication which may be receptive and or expressive.
Morphology	The rules governing meanings of word units.
Phonology	The set of rules for sound production.
Pragmatics	Adaption of language to the social context.
Prosody	Appropriate intonation, rate, rhythm and loudness of speech utterances.
Receptive language	Understanding of language.
Semantics	A set of words known to a person that are a part of a specific language (vocabulary).
Speech	Verbal production of language.
Syntax	The way linguistic elements are put together to form phrases or clauses (grammar).
Voice disorders	Difficulty with speech sound production, at the level of the larynx, may be related to motor or anatomical issues, e.g., hypernasal or hoarse speech.