The difference between Buck and Note

Buck as a noun:

A male deer, antelope, sheep, goat, rabbit, hare, and sometimes the male of other animals such as the ferret and shad.

Buck as a noun (US):

An uncastrated sheep, a ram.

Buck as a noun:

A young buck; an adventurous, impetuous, dashing, or high-spirited young man.

Buck as a noun (British, obsolete):

A fop or dandy.

Buck as a noun (US, dated, derogatory):

A black or Native American man.

Buck as a noun (US, Australia, NZ, Canada, informal):

A dollar (one hundred cents).

Buck as a noun (South Africa, informal):

A rand (currency unit).

Buck as a noun (by extension, Australia, South Africa, US, informal):

Money

Buck as a noun (US, slang):

One hundred.

Buck as a 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.

Buck as a noun (US, in certain metaphors or phrases):

Blame; responsibility; scapegoating; finger-pointing.

Buck as a noun (UK, dialect):

The body of a post mill, particularly in East Anglia. See Wikipedia:Windmill machinery.

Buck as a noun (finance):

One million dollars.

Buck as a noun (informal):

A euro.

Buck as a noun:

A frame on which firewood is sawed; a sawhorse; a sawbuck.

Buck as a noun:

A wood or metal frame used by automotive customizers and restorers to assist in the shaping of sheet metal bodywork. See [http://www.hotrod.com/how-to/additional-how-to/1009sr-making-a-wood-buck/ Street Rodder "Making a Wood Buck"].

Buck as a noun (AAVE, dated, dance):

Buck as a noun:

Buck as a verb (intransitive):

To copulate, as bucks and does.

Buck as a verb (intransitive):

To bend; buckle.

Buck as a 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.

Buck as a verb (transitive, of a horse, _, or similar saddle or pack animal):

To throw (a rider or pack) by bucking.

Buck as a 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.

Buck as a verb (intransitive, by extension):

To resist obstinately; oppose or object strongly.

Buck as a verb (intransitive, by extension):

To move or operate in a sharp, jerking, or uneven manner.

Buck as a 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.

Buck as a verb (riveting):

To press a reinforcing device (bucking bar) against (the force of a rivet) in order to absorb vibration and increase expansion. See Wikipedia: Rivet:Installation.

Buck as a verb (forestry):

To saw a felled tree into shorter lengths, as for firewood.

Buck as a verb (electronics):

To output a voltage that is lower than the input voltage. See Wikipedia: Buck converter

Buck as a noun (Scotland):

The beech tree.

Buck as a noun:

Lye or suds in which cloth is soaked in the operation of bleaching, or in which clothes are washed.

Buck as a noun:

The cloth or clothes soaked or washed.

Buck as a verb:

To soak, steep or boil in lye or suds, as part of the bleaching process.

Buck as a verb:

To wash (clothes) in lye or suds, or, in later usage, by beating them on stones in running water.

Buck as a verb (mining):

To break up or pulverize, as ores.

Note as a noun:

A symbol or annotation. A mark or token by which a thing may be known; a visible sign; a character; a distinctive mark or feature; a characteristic quality. A mark, or sign, made to call attention, to point out something to notice, or the like; a sign, or token, proving or giving evidence. A brief remark; a marginal comment or explanation; hence, an annotation on a text or author; a comment; a critical, explanatory, or illustrative observation.

Note as a noun:

A written or printed communication or commitment. A brief piece of writing intended to assist the memory; a memorandum; a minute. A short informal letter; a billet. A diplomatic missive or written communication. A written or printed paper acknowledging a debt, and promising payment A list of items or of charges; an account. A piece of paper money; a banknote. A small size of paper used for writing letters or notes.

Note as a noun (music):

A sound. A character, variously formed, to indicate the length of a tone, and variously placed upon the staff to indicate its pitch. A musical sound; a tone; an utterance; a tune. A key of the piano or organ.

Note as a noun (uncountable):

Observation; notice; heed.

Note as a noun (uncountable):

Reputation; distinction.

Note as a noun (obsolete):

Notification; information; intelligence.

Note as a noun (obsolete):

Mark of disgrace.

Note as a verb (transitive):

To notice with care; to observe; to remark; to heed.

Note as a verb (transitive):

To record in writing; to make a memorandum of.

Note as a verb (transitive):

To denote; to designate.

Note as a verb (transitive):

To annotate.

Note as a verb (transitive):

To set down in musical characters.

Note as a verb (transitive):

To record on the back of (a bill, draft, etc.) a refusal of acceptance, as the ground of a protest, which is done officially by a notary.

Note as a noun (uncountable, UK, _, dialectal, Northern England, Ireland, Scotland):

That which is needed or necessary; business; duty; work.

Note as a noun (UK, _, dialectal, Northern England, Ireland, Scotland):

The giving of milk by a cow or sow; the period following calving or farrowing during which a cow or sow is at her most useful (i.e. gives milk); the milk given by a cow or sow during such a period.