អក្សរខ្មែរ៖ ភាពខុសគ្នារវាងកំណែនានា

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Most Khmer vowel sounds are written using dependent, or [[វណ្ណយុត្តិ|diacritical]], vowel symbols, known in Khmer as {{ភាសា|km|ស្រៈនិស្ស័យ}} ''srăk nissăy'' or {{ភាសា|km|ស្រៈផ្សំ}} ''srăk phsâm'' ("connecting vowel"). These can only be written in combination with a consonant (or consonant cluster). The vowel is pronounced after the consonant (or cluster), even though some of the symbols have graphical elements which appear above, below or to the left of the consonant character. Most of the vowel symbols have two possible pronunciations, depending on the inherent vowel of the consonant to which it is added. Their pronunciations may also be different in [[ភាសាខ្មែរ|weak syllables]], and when they are shortened (e.g. by means of a diacritic). [[Khmer alphabet#Consonants with no dependent vowel|Absence of a dependent vowel]] (or diacritic) often implies that a syllable-initial consonant is followed by the sound of its inherent vowel.