Common sense refers to practical, sound judgment and reasoning based on everyday experiences and observations. It is the ability to make practical decisions and assessments using general knowledge, logic, and intuition without relying on specialized or formalized knowledge. Common sense is often regarded as the ability to understand and navigate the world in a practical and sensible manner, relying on basic understanding and rationality. It involves applying practical wisdom and practical judgment to various situations and making reasonable and logical decisions based on common knowledge and experience.