(physics, thermodynamics) A measure of the useful work obtainable from a constant temperature, constant volume thermodynamic system; more precisely, the difference between internal energy (of a system) and the product of its absolute temperature and entropy.

(computing theory) A formal grammar in which every production rule is such that the left-hand side is exactly one non-terminal symbol and the right-hand side is zero or more terminal symbols and/or nonterminal symbols.

(physics, chemistry, thermodynamics) The difference between the enthalpy of a system and the product of its entropy and absolute temperature: a measure of the useful work obtainable from a thermodynamic system at constant temperature and pressure.

(US) The president of the United States.

(Incoterm) Describing a situation in which the seller pays for transportation to the port, and the buyer pays for the rest of the transportation.

Nothing is free; even things that appear free often have to be paid in the end.

(business) A measure of a company's financial performance, calculated as Net income plus depreciation and amortization, less changes in working capital, less capital expenditure.

(skiing) Telemark skiing.

A grade of paper containing little or no mechanical wood pulp that is often used in the production of office papers.

plural of free-throw line