Cambodia Languages

Description
Khmer is an Austroasiatic language spoken by the Khmer people, and the official and national language of Cambodia. The vast majority of Khmer speakers speak Central Khmer, the dialect of the central plain where the Khmer are most heavily concentrated.
 * There are also 22 minority languages other than Khmer spoken in Cambodia.
 * English and French are used to different extents in education.

Word List(s)
Khmer
 * Useful phrases in Khmer (Omniglot)
 * Cambodian Words and Phrases You Must Know (YouTube)

Alphabet and Pronunciation
Khmer
 * Khmer Pronunciation (Wikipedia)
 * Khmer Alphabet and Pronunciation (Omniglot)
 * The Khmer Script (Wikipedia)

Language Aids and Dictionaries
Khmer
 * Khmer Language courses, dictionaries (Omniglot)
 * English and Khmer Dictionary (Glosbe)
 * Learn Khmer Fast (ilanguages)
 * Listen to the Khmer Language of Cambodia (YouTube)

Additional Resources

 * Cambodia (Britannica)
 * Khmer People (Wikipedia)
 * Khmer (WorldLanguages)