Alternative spelling of freefall

(of a person or couple) Having no children, biological, step, or adopted, as a matter of choice.

The principles of a freethinker; freethinking

(of food) Containing no gluten. / (of a person) not eating gluten

(climbing) Rock climbing without the aid of ropes or other equipment, sometimes in an urban environment

(linguistics) (Of a grammar) which generates sentences in stages, in such a way that at any intermediate stage, any piece of the sentence is enough to determine the corresponding piece at the next stage; that is, the stagewise transformation at a point does not depend on the rest of the sentence

Without wrinkles.

The Helmholtz free energy, A (the internal energy of a system minus the product of its entropy and absolute temperature)

(of a road or highway) Free to use; not requiring payment of a toll to use. / (US, of a phone call) Without an additional toll, especially for a long-distance charge.

Alternative form of freefall