Empirical knowledge is that which is experienced through the senses. Empiricism is developed around a reality that can be percieved through direct observation. It emphasizes sensory experience and material evidence.
For most, empiricism embodies a sense of material ”truth” based on sensory perception..
In science, empiricism helps to define the nature of the scientific method. All arguments/hypotheses/theories must build upon a foundation of empirical data….data that is gathered from material observation and experiment.