phonsobon/khmer-lexicon

Khmer Lexicon

A pronunciation lexicon of 39,003 Khmer word → pronunciation pairs (37,924 unique words). Each pronunciation is written in Khmer script, syllables separated by spaces, in the style used by pronunciation lexicons for TTS / ASR tools.

word	pronunciation
ក	ក
កកកុញ	កក កុញ
កាលវិបត្តិ	កា ឡៈ វិ ប័ត
កាលវិបត្តិ	កាល វិ ប័ត

The pronunciations follow the Khmer Dictionary 2022 (វចនានុក្រមខ្មែរ ២០២២) of the National Council of Khmer Language (NCKL), Royal Academy of Cambodia: 99% of the pairs (38,625) are identical to that dictionary's readings.

from datasets import load_dataset
ds = load_dataset("phonsobon/khmer-lexicon", split="train")
ds[2]   # {'word': 'កកកុញ', 'pronunciation': 'កក កុញ'}

Files: data/lexicon.parquet and data/lexicon.tsv (tab-separated, header word pronunciation).

Fields

field	description
word	Khmer word as written
pronunciation	Khmer-script respelling, syllables separated by a space

Contents

• 39,003 pairs, 37,924 unique words. The original file had 41,816 rows: 2,813 exact duplicate rows were removed and column names were added. No other changes were made.
• 1,065 words have more than one pronunciation (one row per reading, up to 4).
• Syllables per pronunciation: 1: 4,714 · 2: 12,329 · 3: 8,894 · 4: 7,358 · 5: 3,691 · 6: 1,381 · 7+: 637.

Known issues

This lexicon is not cleaned. For model training, prefer phonsobon/khmer-G2P, which is built from the same dictionary with these problems removed and comes with train / validation / test splits.

• Bound forms without a marker (335 pairs). The dictionary lists combining forms such as កាម— (កា-ម៉ៈ), used only as the first part of compounds. Here the — is gone, so the same word has both its standalone reading and its combining reading, e.g. កាម → កាម and កាម → កា ម៉ៈ.
• Truncated readings copied from the source (about 30 pairs). Some phrases carry only their headword's pronunciation, e.g. ហាមាត់ចង្គ្រុង → ហា, រាជ្យសម្បត្តិ → រាច, ងើយស្កកឱនជ្រងក់ដាក់គ្រាប់ → អោន, or a broken alternative such as សរស្វតី → ដី.
• Lost typo marks. Where the source has the typo ត: (for តៈ), the lexicon drops the colon, e.g. សុប្រាតសុវត្ថិ → សុ ប្រា ត សុ វ៉ាត់ instead of សុ ប្រា តៈ សុ វ៉ាត់.
• A few entries contain digits (កូវីដ១៩) or are multi-word phrases joined together.

License and attribution

The pronunciations come from the Khmer Dictionary 2022 (វចនានុក្រមខ្មែរ ២០២២), © National Council of Khmer Language (NCKL), Royal Academy of Cambodia. Please credit NCKL when using this data, and check NCKL's terms before commercial use.