freeboardThe vertical distance between the waterline and the uppermost watertight deck of a vessel, or the vertical distance from the waterline up to the top of the gunwale (of an open boat).
freebooterAn adventurer who pillages, plunders, or thieves privately or for compensation; or wages ad-hoc war on other nations, similar to mercenary; also a "freeboot".
freebooteryThe act, practice, or gains of a freebooter.
FreeBSDA Unix-like operating system that is derived from Berkeley Software Distribution (BSD), notable for having the largest following in the BSD community.
FreebyA village and civil parish in Melton borough, Leicestershire, England (OS grid ref SK8020).
freecamA camera (a viewpoint) that can be manipulated without restrictions.
FreeCellA solitaire card game, similar to Klondike but with the addition of cells where one card can be placed at a time.
freechapelA chapel founded by the king of England or built under a grant from the king, which is not subject to the jurisdiction of the local bishop or other ruling member of the clergy.
freeclimbTo go rock climbing without equipment. To participate in free climbing.
freecoasterA type of hub that allows a bicycle to move backwards without the pedals moving backwards.
freeconomicsA business model in which a product is offered free of charge and supported by sales of a premium version.
freecoolingA system that chills water or air by using evaporative cooling.
freecuntSynonym of freebox (“To go commando as a woman. To not wear underpants beneath one's dress, skirt, trousers, etc.”).
freedomiteA member of a Christian zealot sect that split off from the Doukhobors, and which was involved in protests against certain policies of the Canadian government during the early to mid 20th century; the Doukhobors were a non-Orthodox religious group which emigrated from Russia to Canada at the end of the 19th century to escape persecution.
freedomwareFree software (with source code available), distinguished from freeware.
FreedoniaUsed as a placeholder country name in textbook problems, classroom examples, etc.
FreedonianAn imaginary person from the imaginary country Freedonia.
freedpersonA person who has been released from a condition of slavery.
freedumbStupidity masquerading as love of freedom; an assertion of one's personal liberty which is perceived to be unreasonable or motivated by stupidity.
freedwomanA woman who has been released from a condition of slavery.
freefallA state of motion affected by no acceleration or force other than that of gravity.
freeflowA style of self-service restaurant or cafeteria where customers can select from various food items without waiting in a queue.
freeganA person who salvages and consumes food that has been discarded, especially one who wishes to protect the environment and challenge consumerism by means of waste reduction.
freeholdOf a tenure or estate in land, held in fee simple absolute in possession by a proprietor; granted out of the allodial title, liable to determine only on escheat.
freehoodThe state or condition of being free; freedom.
freehubA type of bicycle hub incorporating a ratcheting mechanism, with a cassette, or set of sprockets, mounted onto a splined shaft of the hub to engage the chain.
freeingThe act of making something free; liberation.