See also epistemology; Thomas theorem.
1. Broadly, the stance that the truth of any knowledge or fact is tied to a particular frame of reference (McGuire).
2. (philosophy) A relativist and anti-objectivist theory (particularly associated with Nietzsche) that there can be radically different views of reality which are incommensurable: see also incommensurability; translatability. The Sapir-Whorf hypothesis is a form of perspectivism.