Datasets:

riotu-lab
/

arabic_reverse_dictionary

dataset_info:
  features:
    - name: word
      dtype: string
    - name: definition
      dtype: string
  splits:
    - name: train
      num_bytes: 10218867
      num_examples: 58607
  download_size: 5461150
  dataset_size: 10218867
configs:
  - config_name: default
    data_files:
      - split: train
        path: data/train-*

Arabic Reverse Dictionary Dataset

Overview

We present a novel Arabic Reverse Dictionary (RD) dataset comprising over 58,000 definitions collected from trusted, open-source books and websites. To the best of our knowledge, this is the first open-source Arabic reverse dictionary dataset available to the research community.

Dataset Construction

The dataset was developed through multiple extraction methods:

Direct extraction from PDF text for some sources
Optical Character Recognition (OCR) using advanced models (Gemini and Mistral) for other sources
All definitions were subsequently reconstructed using GPT-4o to ensure consistency and clarity in the final dataset

Dataset Statistics

Total definitions: ~58,000
Average definition length: 13.64 words
Average word length: 1.52 words
Topics covered: Islamic studies, linguistics, mathematics, science, psychology, engineering, and more

Source Materials

The dataset was compiled from the following Arabic reference works:

Arabic Title	English Translation	Number of Definitions
موسوعة مصطلحات العقيدة	Encyclopedia of Faith Terminology	4,160
معجم مصطلحات علم النفس	Dictionary of Psychology Terms	4,157
معجم مصطلحات الكيمياء	Dictionary of Chemistry Terms	4,468
معجم مصطلحات الفيزياء	Dictionary of Physics Terms	5,081
معجم مصطلحات الرياضيات	Dictionary of Mathematical Terms	7,808
معجم مصطلحات تعلم الآلة والتعلم العميق وعلم البيانات	Dictionary of Machine Learning, Deep Learning, and Data Science Terms	1,758
معجم مصطلحات هندسة الميكانيكا	Dictionary of Mechanical Engineering Terms	1,569
معجم مصطلحات القياس العربي	Dictionary of Arabic Measurement Terms	550
كتاب التعريفات للجرجاني	Al-Jurjani's Book of Definitions	1,399
معجم الكليات للكفوي	Al-Kafawi's Dictionary of Universals	14,476
كتاب المصطلح في العلوم العربية	Book of Terminology in Arabic Sciences	13,181

Data Format

The dataset is provided in CSV format with the following columns:

word: The target word (term)
definition: The corresponding definition

Applications

This dataset can be utilized for various NLP tasks in Arabic, including:

Building reverse dictionary systems
Definition modeling
Word sense disambiguation
Semantic analysis
Educational applications

Citation

If you use this dataset in your research, please cite:

@dataset{arabic_reverse_dictionary_2025,
  author       = {[Author Names]},
  title        = {Arabic Reverse Dictionary Dataset},
  year         = {2025},
  publisher    = {Hugging Face},
  howpublished = {\url{https://huggingface.co/datasets/[username]/[dataset-name]}}
}

License

This dataset is released under [License Type] and is intended for research purposes.

Acknowledgments

We would like to thank the authors and publishers of the original reference works whose content made this dataset possible.