Intersubjectivity
Intersubjectivity is a term used in philosophy, psychology, sociology, and anthropology to represent the psychological relation between people. It is usually used in contrast to solipsistic individual experience, emphasizing our inherently social being.
Definition
Social psychologists Alex Gillespie and Flora Cornish list at least six definitions of intersubjectivity (and other disciplines have additional definitions).
In its weakest sense, intersubjectivity refers to agreement. There is intersubjectivity between people if they agree on a given set of meanings or a definition of the situation. Similarly, Thomas Scheff defines intersubjectivity as "the sharing of subjective states by two or more individuals."
More subtly intersubjectivity can refer to the common-sense, shared meanings constructed by people in their interactions with each other and used as an everyday resource to interpret the meaning of elements of social and cultural life. If people share common sense, then they share a definition of the situation.