Culture can be defined as:

“A pattern of shared basic assumptions, invented, discovered, or developed by a given group as it (meaning the group) learns to cope with its problems of external adaptation, and internal integration, that has worked well enough to be considered valid, and therefore is to be taught to new members of the group, as the correct way to perceive, think, and feel, in relation to those problems.”  

The above definition is taken from Edgar Schein, author of “What is Culture?”. Schein is a well-known and respected organisational psychologist and consultant.

Culture emphasises conceptual shared meaning, so it’s not just about behaviours but also about how people think, feel, and process things as a group. In other words, if you’re part of a culture you probably see things relatively the same way as others, because you have a shared perception about what things mean.