Not requiring any payment.

Without any payment being required.

(Incoterm) without charge to the purchaser for delivery on board a carrier (originally a ship), at a specified location or point; used in such phrases as FOB destination to specify the point where the title of goods passes from the seller to the buyer

(colloquial) Without consequences or penalties, to go free without payment. / (archaic) Free of scot, free of tax.

(idiomatic) Chaos; a chaotic situation lacking rules or control. / (video games) Deathmatch, sometimes specifically one in which every player is pitted against all the others.

Able to reach a goal without expending any considerable effort; either without or in spite of impediments.

Without trouble.

In which smoking is not allowed.

Alternative form of region-free

Loose rein(s), as of a horse. / (figuratively) The absence of constraints; freedom to make decisions.