
The Khmer language (ភាសាខ្មែរ), also known as Cambodian, is an Austroasiatic language primarily spoken by the Khmer people and serves as the official and national language of Cambodia. It is also spoken by Khmer communities in eastern Thailand, northeastern Thailand (Surin), and the Mekong Delta region of southern Vietnam (Khmer Krom).
Historical and Cultural Background
Khmer has a rich historical lineage, having been the language of the ancient Khmer Empire, including the Chenla and Angkor periods. Its vocabulary and literary tradition have been significantly influenced by Sanskrit and Pali, especially in royal, religious, and literary contexts. These influences came through Hinduism and later Theravada Buddhism, which shaped much of Cambodia’s culture and language development. For instance, many administrative, military, and literary terms are borrowed from Sanskrit, while Pali became a major source of new words after the 15th century with the spread of Buddhism.
Geographic Distribution and Dialects
The vast majority of Khmer speakers use Central Khmer, the dialect spoken in the central plains of Cambodia where the Khmer population is densest. However, there are notable dialectal variations:
– Phnom Penh dialect, spoken in the capital, differs enough from Central Khmer to be considered a separate dialect;
– Khmer Khe dialect in Stung Treng province also shows distinct features;
– Outside Cambodia, three main dialects exist:
– Northern Khmer in southern northeastern Thailand, spoken by over a million people and sometimes considered a separate language;
– Khmer Krom (Southern Khmer) in Vietnam;
– A conservative dialect in the remote Cardamom Mountains, retaining features of Middle Khmer.
Linguistic Features
Khmer is a monosyllabic language where most native words have one or two syllables. Words with three or more syllables are typically loanwords from Sanskrit or Pali or newly coined terms. The language does not use tones, unlike many neighboring Southeast Asian languages, but it has a complex system of consonants and vowels.
Consonants and Vowels
Khmer has 33 consonants, including aspirated and unaspirated forms, divided into several groups such as velars, palatals, retroflexes, dentals, and labials. Some examples include:

There are 24 dependent vowel symbols in Khmer, which can be short or long and change pronunciation depending on the consonant series they combine with. Vowels can have two different sounds based on the consonant class, making Khmer phonology quite intricate. Some vowels are pronounced the same regardless of the consonant series.
Pronunciation and Romanization
Khmer pronunciation varies regionally and individually, with a “standard pronunciation” and many “alternate pronunciations” that may compress or drop syllables in rapid speech (e.g., “មក” [mok] becomes “ម” [mo]). There is no universally accepted system for Romanizing Khmer, but transliteration often follows the International Phonetic Alphabet (IPA) conventions.
Written Language
Khmer uses an abugida script, derived from the ancient Brahmi script of India, which is one of the oldest scripts in Southeast Asia. The script is used for both the official written language and religious texts. The written form tends to preserve more Sanskrit and Pali loanwords and is often more formal than the spoken language.
Sociolinguistic Aspects
Khmer language usage reflects social and regional diversity:
– The written Khmer is more formal and includes many Sanskrit and Pali terms;
– The spoken Khmer is the everyday language, with a mixture of standard, slang, and rural dialects;
– Slang, referred to as “bottom-of-the-market” talk, introduces new words not found in standard speech;
– Regional accents and dialects add further variation, with Phnom Penh speech considered the standard.
– A distinct vocabulary is used for royalty and monks.
Influence and Borrowings
Khmer has influenced and been influenced by neighboring languages such as Thai and Vietnamese. During French colonial rule in the 19th and 20th centuries, many technical and scientific terms were borrowed from French, which remain in use today. Modern Khmer also includes many words loaned from various Chinese dialects, and an increasing number of English words are widely used in everyday life.
Number of Speakers and Status
Approximately 16 million people speak Khmer, primarily in Cambodia but also in neighboring countries. It is the language of government, education, media, and daily communication in Cambodia, deeply tied to the country’s identity and culture. Khmer is also used in the diasporas.
This overview highlights Khmer as a language with deep historical roots, complex phonology, rich dialectal variation, and significant cultural importance in Southeast Asia. Its script and vocabulary reflect centuries of religious and political influence, making it a unique and vital part of Cambodia’s heritage.

















