There is no single definition of literacy as it depends on how people use it based on their life experiences and exposures. Literacy development and use is influenced by various social factors like ethnicity, age, socioeconomic class, and more. Literacy has also evolved over time, once only involving reading and writing but now encompassing other forms like signs, music, video games, and gambling slips. How people view and practice literacy is unique to the individual based on their particular circumstances and what is important to them.