A syllable is a unit of organization for a sequence of speech sounds. For example, the word water is composed of two syllables: wa and ter.A syllable is typically made up of a syllable nucleus (most often a vowel) with optional initial and final margins (typically, consonants).Syllables are often considered the phonological building blocks of words. They can influence the rhythm of a language, its prosody, its poetic meter and its stress patterns.he first syllable of a word is the initial syllable and the last syllable is the final syllable. In languages accented on one of the last three syllables, the last syllable is called the ultima, the next-to-last is called the penult, and the third syllable from the end is called the antepenult.