The concept of "part" is not easy to define though it is intimately connected to the concept "whole". For the formal study of the parthood relation, see mereology. In Mathematical logic, mereology is a collection of axiomatic First-order theories dealing with parts and their respective wholes

Part can also mean:

• In part (music):
• A part is the music played by an individual instrument or voice (or group of identical instruments or voices) within a larger work
• A part in great Highland Bagpipe music is a musical sentence
• In the performing arts, a part is an actor's role (see Role (performing arts)). A part is the Music played by an individual instrument or voice (or group of identical instruments or voices within a larger work such as a Melody A role, or rôle, in the Performing arts, is usually taken to mean an Actor 's Characterization, or Interpretation
• In mathematics, a part (mathematics) is any geometric object such as a point, line, arc, circle, polygon, polyhedron, or polytope that can be joined together to form a whole.
• In engineering, a part is a component used in a higher-level mechanical or electrical assembly. Examples of parts are screws, transistors and other electronic components, a specially shaped piece of metal required by the mechanism of a specific model of video cassette recorder, and a myriad other examples. A screw is a shaft with a helical groove or thread formed on its surface and provision at one end to turn the screw In Electronics, a transistor is a Semiconductor device commonly used to amplify or switch electronic signals An electronic component is a basic electronic element usually packaged in a discrete form with two or more connecting leads or metallic pads PLEASE BEAR IN MIND THAT THIS IS A GENERAL ARTICLE ABOUT VCRs/VIDEOCASSETTE RECORDERS Parts required to replace broken parts in existing equipment are called spare parts or just spares.
• In fashion, the part or parting of a person's hair is the "watershed" line at which the hair is divided (often with a comb), and forms part of their hairstyle. Haircut redirects here For the financial term see Haircut (finance. Some people part their hair in the middle (a "center part," following the natural part of the hair), and some part their hair at one side or the other.
• In preparing mixtures, it is customary to specify an undefined amount of a mixture in either parts or percentages. In Mathematics, a percentage is a way of expressing a number as a Fraction of 100 ( per cent meaning "per hundred" For example the cocktail known as a Martini is described as being made with 5 parts of gin to 1 of vermouth. A cocktail is a style of Mixed drink. Originally a mixture of distilled spirits, Sugar, Water, and Bitters, the word has gradually The martini is a Cocktail made with Gin and dry white Vermouth or sweet red Vermouth. Gin is a spirit flavoured with Juniper berries. Distilled gin is made by redistilling white grain spirit which has been flavoured with juniper Vermouth (also spelled vermuth) is a Fortified wine flavored with aromatic Herbs and spices ("aromatized" in the trade using closely-guarded recipes This terminology can also be used in relation to cement and recipes.
• In the Hebrew calendar, a part (chelek) is 1/18 of a minute, or 3 1/3 seconds. The Hebrew calendar (הלוח העברי ha'luach ha'ivri) or Jewish calendar is a Lunisolar calendar used by Jews for predominantly religious

## part

### -noun

1. A fraction of a whole; a portion.
2. A distinct element or component.
3. A group inside a larger group.
4. Duty; responsibility.
5. Share, especially of a profit.
6. Position or role (especially in a play).
7. A unit of relative proportion in a mixture.
8. 3.5 centiliters of one ingredient in a mixed drink.
9. A section of a document.
10. (US) The dividing line formed by combing the hair in different directions.
11. (music) The melody played or sung by a particular instrument, voice, or group of instruments or voices, within a polyphonic piece.
12. (Judaism) In the Hebrew lunisolar calendar, a unit of time equivalent to 3⅓ seconds.

### -verb

1. (intransitive) To leave.
2. To cut hair with a parting.
3. (transitive) To divide in two.
4. (intransitive) To be divided in two or separated.
5. (transitive, computing) To leave (an IRC channel).