Instrument vs. Perimeter — What's the Difference?

A tool or implement used to do or facilitate work, especially a small precision tool used by a professional

A perimeter is either a path that encompasses/surrounds/outlines a shape (in two dimensions) or its length (one-dimensional). The perimeter of a circle or an ellipse is called its circumference.

A device for recording, measuring, or controlling, especially such a device functioning as part of a control system.

The continuous line forming the boundary of a closed geometrical figure

(Music) A device designed to enable a person to make musical sounds, as by blowing into it, striking it, depressing the keys on a keyboard, or plucking, strumming, or running a bow over strings.

An instrument for measuring the extent and characteristics of a person's field of vision.

A means by which something is done; an agency

A closed line bounding a plane area.

One used by another to accomplish a purpose; a dupe.

The length of such a line.

A legal document, especially one that represents a right of payment or conveys an interest, such as a check, promissory note, deed, or will.

The outer limits of an area.

To provide or equip with instruments.

A defended boundary protecting a military position.

(Music) To compose or arrange for performance.

(Basketball) The three-point line.

A device used to produce music.

(mathematics) The sum of the distance of all the lengths of the sides of an object.

A means or agency for achieving an effect.

(mathematics) The length of such a boundary.

A measuring or displaying device.

The outer limits of an area. circumference

A tool, implement used for manipulation or measurement.

A fortified strip or boundary usually protecting a military position.

Ellipsis of flight instrument

An instrument for determining the extent and shape of the field of vision.

(legal) A legal document, such as a contract, deed, trust, mortgage, power, indenture, or will.

The outer boundary of a body or figure, or the sum of all the sides.

(figuratively) A person used as a mere tool for achieving a goal.

An instrument for determining the extent and shape of the field of vision.

(transitive) To apply measuring devices.

The boundary line or the area immediately inside the boundary

(transitive) To devise, conceive, cook up, plan.

A line enclosing a plane areas

To perform upon an instrument; to prepare for an instrument.

The size of something as given by the distance around it

That by means of which any work is performed, or result is effected; a tool; a utensil; an implement; a device; as, the instruments of a mechanic; astronomical instruments.

A contrivance or implement, by which musical sounds are produced; as, a musical instrument.

A writing, as the means of giving formal expression to some act; a writing expressive of some act, contract, process, as a deed, contract, writ, etc.

One who, or that which, is made a means, or is caused to serve a purpose; a medium, means, or agent; as, their army was primarily an instrument of oppression.

To perform upon an instrument; to prepare for an instrument; as, a sonata instrumented for orchestra.

To furnish or equip with instruments; to attach instruments to; as, the fighter planes were heavily instrumented; the patient was instrumented to monitor him remotely.

A device that requires skill for proper use

The means whereby some act is accomplished;

A person used by another to gain an end

(law) a document that states some contractual relationship or grants some right

The semantic role of the entity (usually inanimate) that the agent uses to perform an action or start a process

Any of various devices or contrivances that can be used to produce musical tones or sounds

Equip with instruments for measuring, recording, or controlling

Write an instrumental score for

Address a legal document to