(algebra) A linear combination of powers of an indeterminate (or products of powers of more than one indeterminate), with coefficients belonging to an integral domain or a field. (The indeterminate is thought of as an element extraneous to the set of coefficients, instead of as a variable element of it (as in the case of polynomial functions), just as, say, the square root of negative one is an element extraneous to the set of integers when it is adjoined to them to form the domain of Gaussian integers. The indeterminate forms a free commutative monoid, to which all powers of it belong, and the unity of it can also show up implicitly in the constant term of a polynomial form.)

(linear algebra) bilinear form

(linear algebra) A linear functional.

(linear algebra) A function of two arguments from the same vector space which maps onto a field of scalars, which acts like a linear form with respect to either one of its arguments when the other one is held constant.

(linguistics) A second-person pronoun used in formal situations, to address unfamiliar people and superiors.

(linguistics) A second-person pronoun used in informal situations, to address friends, family, and sometimes inferiors.

Any of a set of presuppositions or fundamental ideas which define the thinking of people of a given region, time period etc.

(mathematics) A form (expression) that does not use limits, implicitly or explicitly. / (mathematics) A differential form whose exterior derivative is zero.

(logic) Alternative form of argument form

(linguistics) A synonymous but not identical, coexisting form (variation) of a word, such as an accepted alternative spelling.