(chemistry, physics) A molecule, ion or atom that has one or more unpaired electrons, and which is generally highly reactive (and therefore often occurs only as a transient species).

a reed in a musical wind instrument whose edges do not overlap the edges of the opening over which it is fixed and that is used typically in the harmonium or concertina

(American football, soccer, Australian rules football, rugby, other ballgames) a kick in which a player may kick the ball without interference from the opposition. Such a kick may be awarded for a foul by the opposition, or earned by a player such as by taking a mark.

(idiomatic, with to-infinitive) To feel able without giving offense. / (as imperative, with to-infinitive) You have my permission. / (as imperative, in response) You have my permission.

(economics) Any market in which trade is unregulated by government; an economic system free from government intervention.

(poetic) The United States of America.

Of, related to or characteristic of a free market. Lacking wealth redistribution and government regulation.

International trade without government interference, especially from tariffs or duties on imports.

(sports) A professional athlete who is free to play for or sign a contract to play for any team. / A person who acts freely, or without constraint to a higher power.

Alternative spelling of freethinker