n (linguistics) A set of all forms which contain a common element, especially the set of all inflectional forms of a word or a particular grammatical category.
n A system of assumptions, concepts, values, and practices that constitutes a way of viewing reality.
n A way of thinking which can occasionally lead to misleading predispositions; a prejudice. A route of mental efficiency which has presumably been verify|verified by affirmative results/predictions.
n A philosophy consisting of ‘top-bottom’ ideas (namely biases which could possibly make the practitioner susceptible to the ‘confirmation bias’).