Definitions from Wiktionary ( )

▸ noun:  A male deer, antelope, sheep, goat, rabbit, hare, and sometimes the male of other animals such as the hamster, ferret, shad and kangaroo.
▸ noun:  (US) An uncastrated sheep, a ram.
▸ noun:  (Africa) An antelope of either sex; compare with Afrikaans bok.
▸ noun:  A young buck; an adventurous, impetuous, dashing, or high-spirited young man.
▸ noun:  (British, obsolete) A fop or dandy.
▸ noun:  (US, dated, derogatory) A black or Native American man.
▸ noun:  (US, military slang, WWI–WWII) Lowest rank; a private.
▸ noun:  A unit of a particular currency
▸ noun:  (US, Australia, New Zealand, Canada, informal) A dollar (one hundred cents).
▸ noun:  (South Africa, informal) A rand (currency unit).
▸ noun:  (UK, slang, obsolete) A sixpence.
▸ noun:  (informal, rare) A euro.
▸ noun:  (by extension, Australia, South Africa, US, informal) Money.
▸ noun:  (finance) One million dollars.
▸ noun:  (US, slang) One hundred.
▸ noun:  An implement the body of which is likened to a male sheep’s body due maintaining a stiff-legged position as if by stubbornness.
▸ noun:  (UK, dialect) The body of a post mill, particularly in East Anglia. See Wikipedia:Windmill machinery.
▸ noun:  A frame on which firewood is sawed; a sawhorse; a sawbuck.
▸ noun:  A leather-covered frame used for gymnastic vaulting.
▸ noun:  A wood or metal frame used by automotive customizers and restorers to assist in the shaping of sheet metal bodywork.
▸ noun:  (dated) An object of various types, placed on a table to indicate turn or status; such as a brass object, placed in rotation on a US Navy wardroom dining table to indicate which officer is to be served first, or an item passed around a poker table indicating the dealer or placed in the pot to remind the winner of some privilege or obligation when his or her turn to deal next comes.
▸ noun:  (by extension in the US, in certain metaphors or phrases) Blame; responsibility; scapegoating; finger-pointing.
▸ noun:  (African-American Vernacular, dated, dance) Synonym of buck dance.
▸ noun:  Synonym of mule (“type of cocktail with ginger ale etc.”)
▸ noun:  (dated, slang) A kind of large marble in children's games.
▸ noun:  (UK, obsolete, slang) An unlicensed cabman.
▸ verb:  (intransitive) To copulate, as bucks and does.
▸ verb:  (intransitive) To bend; buckle.
▸ verb:  (intransitive, of a horse or similar saddle or pack animal) To leap upward arching its back, coming down with head low and forelegs stiff, forcefully kicking its hind legs upward, often in an attempt to dislodge or throw a rider or pack.
▸ verb:  (transitive, of a horse or similar saddle or pack animal) To throw (a rider or pack) by bucking.
▸ verb:  (transitive, military) To subject to a mode of punishment which consists of tying the wrists together, passing the arms over the bent knees, and putting a stick across the arms and in the angle formed by the knees.
▸ verb:  (US, military slang) To strive or aspire e.g. to a promotion.
▸ verb:  (intransitive, by extension) To resist obstinately; oppose or object strongly.
▸ verb:  (intransitive, by extension) To move or operate in a sharp, jerking, or uneven manner.
▸ verb:  (transitive, by extension) To overcome or shed (e.g., an impediment or expectation), in pursuit of a goal; to force a way through despite (an obstacle); to resist or proceed against.
▸ verb:  (riveting) To press a reinforcing device (bucking bar) against (the force of a rivet) in order to absorb vibration and increase expansion.
▸ verb:  (forestry) To saw a felled tree into shorter lengths, as for firewood.
▸ verb:  (electronics) To output a voltage that is lower than the input voltage.
▸ verb:  (chiefly Ireland, humorous or euphemistic) To fuck.
▸ verb:  (MLE) To meet, to encounter, to come across.
▸ noun:  (Scotland) The beech tree.
▸ noun:  Lye or suds in which cloth is soaked in the operation of bleaching, or in which clothes are washed.
▸ noun:  The cloth or clothes soaked or washed.
▸ verb:  To soak, steep or boil in lye or suds, as part of the bleaching process.
▸ verb:  To wash (clothes) in lye or suds, or, in later usage, by beating them on stones in running water.
▸ verb:  (mining) To break up or pulverize, as ores.
▸ noun:  (UK, dialectal) The body of a cart or waggon, especially the front part.
▸ noun:  (UK, dialectal, anatomy) Belly, breast, chest.
▸ noun:  (UK, dialectal) Size.
▸ verb:  (UK, dialectal, intransitive) To swell out.
▸ verb:  (intransitive, archaic, slang) To boast or brag.
▸ noun:  An English surname transferred from the nickname.
▸ noun:  A male given name from Old English.
▸ noun:  A German surname, a variant of Buch.
▸ noun:  An unincorporated community in Lancaster County, Pennsylvania, United States.
▸ noun:  A township in Luzerne County, Pennsylvania.
▸ noun:  A township in Hardin County, Ohio, United States.
▸ noun:  Clipping of buckshot. [(chiefly US) Lead shot used in shotgun cartridges, made of larger pellets than birdshot and suitable for hunting larger game. [from 18th c.]]

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