Which term refers to the smallest unit of sound in a language that can distinguish meaning?

Which term refers to the smallest unit of sound in a language that can distinguish meaning?

• A. Morpheme
• B. Syllable
• C. Grapheme
• D. Phoneme

Answer: (D)

The key idea is that a phoneme is the smallest unit of sound in a language that can distinguish meaning. When you swap one phoneme for another, you often create a different word. For example, changing the initial sound in “pat” to a different phoneme gives you “bat,” and the meaning changes. Those sounds are phonemes because they contrast in a way that changes what the word refers to. Morphemes, by contrast, are the smallest units that carry meaning themselves, like prefixes or suffixes (un-, -ing, -cat). Syllables are units of pronunciation that organize sounds around a vowel, not necessarily tied to changing meaning. Graphemes are written symbols that represent sounds, letters in a written form, not the spoken units that create meaning. So the term that fits is the phoneme.

The key idea is that a phoneme is the smallest unit of sound in a language that can distinguish meaning. When you swap one phoneme for another, you often create a different word. For example, changing the initial sound in “pat” to a different phoneme gives you “bat,” and the meaning changes. Those sounds are phonemes because they contrast in a way that changes what the word refers to.

Morphemes, by contrast, are the smallest units that carry meaning themselves, like prefixes or suffixes (un-, -ing, -cat). Syllables are units of pronunciation that organize sounds around a vowel, not necessarily tied to changing meaning. Graphemes are written symbols that represent sounds, letters in a written form, not the spoken units that create meaning.

So the term that fits is the phoneme.