"Literacy is the ability to identify, understand, interpret, create, compute, and communicate using visual, audible, and digital materials across disciplines and in any context. The ability to read, write, and communicate connects people to one another and empowers them to achieve things they never thought possible. Communication and connection are the basis of who we are and how we live together and interact with the world."
https://www.literacyworldwide.org
Check out the six tabs ("Foundational Knowledge," "Curriculum and Instruction," "Assessment and Evaluation," "Diversity and Equity," "Learners and the Literate Environment," and "Professional Learning and Leadership") under "Literacy" to see my experience with the topic.