1- https://www.merriam-webster.com/ 2- https://www.collinsdictionary.com/ 3- https://www.oxfordlearnersdictionaries.com/us/definition/english/subjec… 4- https://www.ahdictionary.com/word/search.html?q=subject 5-https://dictionary.cambridge.org/dictionary/english/subject?q=subject_1 6- https://www.almaany.com/ar/dict/ar-en/ https://corpus.quran.com/