Answer :
Alexander is 6 years old, and although he pronounces most words clearly, he has difficulty pronouncing "j," "v," "th," and "zh" sounds, which are examples of phonemes.
What is phonemes?
In phonology and linguistics, a phoneme is a unit of sound that can distinguish one word from another in a particular language.
In speech, a phoneme is a sound. The smallest unit of sound that separates one word from another is called a phoneme.
We utilise letters to signify or stand for sounds since they cannot be written. A grapheme is a letter or group of characters that represents a single sound in writing.
Allophones are the different phoneme combinations that can be found in sentences represented phonetically.
They could be thought of as being produced as a result of applying the phonological rules to the underlying forms of the phonemes.
Thus, the given words comes under phonemes.
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Alexander, at age 6, is showing signs of an articulation disorder, which is a speech difficulty involving incorrect pronunciation of certain sounds. These types of speech issues are common in early childhood but should usually be resolved around the age of six, and professional help might be necessary for improvement. Articulation disorders differ from accents and involve errors in sound production that can hinder communication.
Alexander, who is 6 years old and has difficulty pronouncing "j," "v," "th," and "zh" sounds, is exhibiting signs of an articulation disorder. This type of disorder involves the inability to correctly produce speech sounds (phonemes) due to imprecise movements of the lips, tongue, or throat. Children's pronunciations typically become more accurate between 1 and 3 years, and while many issues resolve by school age, some can persist beyond that. If issues with producing certain sounds continue by age six, as in Alexander's case, it's often advised that parents seek professional help.
It's important to differentiate between an accent and an articulation disorder; an accent is not considered a disorder. Articulation disorders can involve substituting one sound for another, omitting sounds, adding extra sounds, or changing sounds. This may result in difficulties for others to understand the speaker. Early intervention can be crucial for correcting articulation disorders, and a speech-language pathologist can offer specialized strategies and exercises to help improve speech production in children.