Which of the following is NOT a component of syllable structure?

In phonetics, syllable structure comprises specific components that work together to form a syllable. The nucleus, coda, and onset are fundamental parts of this structure.

The nucleus is typically the vowel sound in a syllable, serving as its core, while the onset is the consonant or consonants that appear before the nucleus. The coda refers to any consonant or consonants that come after the nucleus. Together, these elements help define how syllables are formed and articulated in different languages.

On the other hand, an affix does not pertain to the structure of a syllable. Instead, it is a morpheme that can be added to a base word to modify its meaning or grammatical function. Affixes include prefixes and suffixes and are important in morphology, but they are not related to the internal organization of syllables. This distinction highlights why an affix is correctly identified as NOT being a component of syllable structure.