• Instrument (film)
  Instrument (film)
  Instrument is a documentary film directed by Jem Cohen about the band Fugazi. Cohen's relationship with band member Ian MacKaye extends back to the 1970s when the two met in high school in Washington, D.C....
  
  , a documentary of the band Fugazi, directed by Jem Cohen
  Jem Cohen
  Jem Alan Cohen is an award-winning New York City-based filmmaker known for his observational portraits of urban landscapes, blending of media formats and collaborations with music artists. He is the recipient of the Independent Spirit Award and many first place awards for feature filmmaking...
  
  
• Instruments (application)
  Instruments (application)
  Instruments is an application performance analyzer and visualizer, integrated in Xcode 3.0 and later versions of Xcode. It is a developer tool included in Apple Mac OS X v10.5 and later versions of Mac OS X, built on top of the DTrace tracing framework from OpenSolaris and ported to Mac OS...
  
  , a performance visualizer

Science and technology

• Measuring instrument
  Measuring instrument
  In the physical sciences, quality assurance, and engineering, measurement is the activity of obtaining and comparing physical quantities of real-world objects and events. Established standard objects and events are used as units, and the process of measurement gives a number relating the item...
  
  , a device used to measure or compare physical properties
• Electrical instrument, an instrument used to measure voltage
  Voltage
  Voltage, otherwise known as electrical potential difference or electric tension is the difference in electric potential between two points — or the difference in electric potential energy per unit charge between two points...
  
  , electric current
  Electric current
  Electric current is a flow of electric charge through a medium.This charge is typically carried by moving electrons in a conductor such as wire...
  
  , resistance, power, etc.
• Electronic instrument, a technical instrument of any kind that relies on electronics
  Electronics
  Electronics is the branch of science, engineering and technology that deals with electrical circuits involving active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies...
  
   for its performance and accuracy. Also, any specialized electical instrument for making measurements in electronic equipment or devices.
• Scientific instrument
  Scientific instrument
  A scientific instrument can be any type of equipment, machine, apparatus or device as is specifically designed, constructed and often, through trial and error, ingeniously refined to apply utmost efficiency in the utilization of well proven physical principle, relationship or technology to...
  
  , a device used to collect scientific data, often electronic in nature
• Laboratory equipment
  Laboratory equipment
  Laboratory equipment refers to the various tools and equipment used by scientists working in a laboratory. These include tools such as Bunsen burners, and microscopes as well as speciality equipment such as operant conditioning chambers, spectrophotometers and calorimeters...
  
  , the measuring tools used in a scientific laboratory, often electronic in nature
• Medical instrument, a device used to diagnose or treat diseases
• Flight instruments
  Flight instruments
  Flight instruments are the instruments in the cockpit of an aircraft that provide the pilot with information about the flight situation of that aircraft, such as height, speed and altitude...
  
  , the devices used to measure the speed, altitude, and pertinent flight angles of various kinds of aircraft
• Quantum instrument
  Quantum instrument
  A quantum instrument is a quantum operation with both classical and quantum outputs. It combines the concepts of measurement and quantum operation....
  
  , a mathematical object in quantum theory combining the concepts of measurement and quantum operation
• Vehicle instrument, a device measuring parameters of a vehicle, such as its speed or position
• Weather instrument, a device used to record aspects of the weather

Other

• Financial instrument, a formal documentation of a financial transaction
• Instrumental variable
  Instrumental variable
  In statistics, econometrics, epidemiology and related disciplines, the method of instrumental variables is used to estimate causal relationships when controlled experiments are not feasible....
  
  , a method used in statistics
• Legal instrument
  Legal instrument
  Legal instrument is a legal term of art that is used for any formally executed written document that can be formally attributed to its author, records and formally expresses a legally enforceable act, process, or contractual duty, obligation, or right, and therefore evidences that act, process, or...
  
  , a formal documentation of a status or transaction
• Musical instrument
  Musical instrument
  A musical instrument is a device created or adapted for the purpose of making musical sounds. In principle, any object that produces sound can serve as a musical instrument—it is through purpose that the object becomes a musical instrument. The history of musical instruments dates back to the...
  
  , a device designed to produce musical sounds
• Negotiable instrument
  Negotiable instrument
  A negotiable instrument is a document guaranteeing the payment of a specific amount of money, either on demand, or at a set time. According to the Section 13 of the Negotiable Instruments Act, 1881 in India, a negotiable instrument means a promissory note, bill of exchange or cheque payable either...
  
  , a type of contract
• Statutory instrument
  Statutory Instrument
  A Statutory Instrument is the principal form in which delegated or secondary legislation is made in Great Britain.Statutory Instruments are governed by the Statutory Instruments Act 1946. They replaced Statutory Rules and Orders, made under the Rules Publication Act 1893, in 1948.Most delegated...
  
  , a form of legislation