[Resource] Arabic WordNet 4.0 Released - 109,823 synsets (CC BY 4.0)

[Salah Abdo]

Dear SIGARAB community,

I am happy to announce the release of Arabic WordNet 4.0, a
comprehensive lexical resource for Arabic NLP research.

Key Features:
- 109,823 synsets (100% OEWN coverage)
- 124,653 lexical entries
- 166,643 senses
- 265,676 synset relations
- 97.2% ILI coverage
- WN-LMF 1.4 format
- CC BY 4.0 license

Methodology:
Created using the expand approach, with translations generated
using AI-assisted translation (Google Gemini 3 Pro Preview).

Links:
- GitHub: https://github.com/Salah-Sal/arabic-wordnet-v4
- DOI: https://doi.org/10.5281/zenodo.18335226


This provides 11x more coverage than the previous Arabic WordNet
in OMW (9,916 synsets).

Derived from Open English WordNet (CC BY 4.0), based on Princeton
WordNet 3.0.

Feedback and contributions welcome via GitHub issues.

Best regards,
Salah Abdo
Salah.A...@gmail.com

[Nizar Habash]

Thanks Salah for sharing this. Very useful.

A couple of questions:

(1) Is there a written report on the creation process?

(2) How does this work relate to the original Arabic Wordnet or the more recent efforts by Freihat et al 2024?

(3) Is there a quality evaluation of the generated resources? LLMs are good... but they hallucinate as you know. It would be helpful to quantify an error estimation.   For example, what is the degree of overlap with the original Arabic Wordnet? or a 1000 synset manual check?

Best

Nizar

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Nizar Habash

Professor of Computer Science

New York University Abu Dhabi
https://www.nizarhabash.com/