Typically, Turkish words do not contain two successive vowels, except for some loanwords.
if a vowel-initial suffix is attached to a vowel-final word, a consonant (typically 'y') emerges to avoid a VV sequence, as demonstrated in (Table 3( A further phonological operation in Turkish is Vowel Harmony, which requires any vowel to agree in backness and any high vowel to agree in rounding with the preceding vowel.