Of, pertaining to, or produced by animals that are allowed to roam freely, rather than being confined indoors. / (figuratively) Allowed to move about outdoors without supervision.

(simile) Having no ties; completely free.

(group theory) A group that has a presentation without relators; equivalently, a free product of some number of copies of ℤ.

(mathematics) A group formed from others by concatenating their presentations (when those presentations are written with disjoint sets of generators).

Someone who obtains goods or services legally without paying. / (economics) One who obtains benefit from a public good without paying for it directly.

(idiomatic) Something obtained without any payment, obligation or effort.

(Incoterm) Meaning the seller incurs all costs of transportation up to a named carrier, after which the responsibility is with the buyer.

plural of free lunch

On which no rent is payable.

Without paying rent.