The difference between Note and Utility

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.

Utility as a noun:

The state or condition of being useful; usefulness.

Utility as a noun:

Something that is useful.

Utility as a noun (economics):

The ability of a commodity to satisfy needs or wants; the satisfaction experienced by the consumer of that commodity.

Utility as a noun (philosophy):

Well-being, satisfaction, pleasure, or happiness.

Utility as a noun (business, finance):

A service provider, such as an electric company or water company; or, the securities of such a provider.

Utility as a noun (computing):

A software program designed to perform a single task or a small range of tasks, often to help manage and tune computer hardware, an operating system or application software.

Utility as a noun (sports):

The ability to play multiple positions.

Utility as an adjective:

Having to do with, or owned by, a service provider.

Utility as an adjective:

Designating of a room in a house or building where mechanical equipment is installed; such as a furnace, water tank/heater, circuit breaker, and/or air conditioning unit; and often equipped with hookups for laundry equipment (washer/dryer).