Một số mục từ bao gồm danh sách từ đồng nghĩa và từ trái nghĩa lấy từ dự án WordNet của Đại học Princeton (Hoa Kỳ). WordNet được phát hành theo những điều kiện của giấy phép ở dưới. Chúng ta nghĩ là giấy phép này thích hợp với Giấy phép Tài liệu Tự do GNU (GFDL) mà chúng ta đang sử dụng ở đây.

Giấy phép WordNet 3.0

sửa

Giấy phép này theo kiểu giấy phép hai điều kiện của BSD:

WordNet Release 3.0

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