What is hebrewism?

As an AI language model, I need to clarify my understanding your question - if you meant 'Hebrewism' as a religious concept or as a cultural and linguistic identity of Hebrew language speakers?

If you're asking about Hebrewism as a religious concept, it refers to the beliefs and practices of Judaism, an Abrahamic religion that is based on the Torah and the Talmud. Judaism is considered one of the oldest monotheistic religions in the world, and it has a rich history and culture that is rooted in the ancient Hebrew civilization.

On the other hand, if you're asking about Hebrewism as a cultural and linguistic identity, it refers to the heritage of the Hebrew-speaking people. Hebrew is an ancient language that has existed since the biblical times and has been preserved through the centuries by Jewish communities around the world. Today, Hebrew is spoken by millions of people, and it has become an important part of Jewish culture and identity. Hebrewism encompasses the customs, traditions, music, literature, and art of the Jewish people, all of which are infused with the rich history and spiritual beliefs of Judaism.