ENGLISH
REFERENCE

tracker

n.
US //ˈtɹækɝ// UK //tɹˈækɐ// track·er
  1. 1 monitoring device or app (n.)
    B1 Intermediate Computing

    a device or software that records your activity, location, or health data.

    an electronic device or software application designed to monitor and record data over time, such as GPS coordinates or physiological metrics.

    Example

    I wear a fitness tracker on my wrist to count how many steps I take each day.

    Example

    The logistics company installed a GPS tracker on every vehicle in the fleet to provide customers with real-time delivery updates.

    Usage

    Often used in compound nouns like 'fitness tracker' or 'sleep tracker'.
  2. 2 person who follows tracks (n.)
    B2 Upper Intermediate

    a person who is skilled at following the marks or signs left by people or animals.

    an individual skilled in the art of tracking, typically following physical signs such as footprints or disturbed vegetation to locate a target.

    Example

    The expert tracker was able to find the lost hikers by looking at broken branches.

    Example

    The documentary followed a local tracker who could identify the age and health of a lion just by examining its paw prints in the sand.
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  1. 3 web monitoring script (n.)
    C1 Advanced Technical Computing

    a small piece of code on a website that follows what you do online.

    a script or cookie used by websites to collect data about a user's browsing habits, often for advertising or analytical purposes.

    Example

    Many modern web browsers now block trackers to protect your privacy.

    Example

    Privacy advocates warn that invisible third-party trackers can build a detailed profile of your interests without your explicit consent.
    • web bug
    • tracking cookie
  2. 4 financial rate follower (n.)
    C1 Advanced British English Finance

    a type of loan or mortgage where the interest rate changes based on a central bank's rate.

    a financial product, particularly a mortgage, with an interest rate that is pegged to a publicly tracked index, such as a central bank's base rate.

    Example

    They chose a tracker mortgage because they expected interest rates to stay low.

    Example

    Borrowers on a tracker mortgage saw their monthly payments increase immediately following the central bank's decision to raise the base rate.

    Teacher's tip

    This sense is very common in the UK and Ireland; American English speakers usually refer to these as 'adjustable-rate' products.
    • variable rate mortgage
    • fixed rate mortgage
  3. 5 music composition software (n.)
    C2 Proficiency Technical Music

    a type of music software where notes are placed on a vertical timeline.

    a class of music sequencer software that allows the user to arrange notes and samples on a vertical timeline across several channels.

    Example

    He composed the entire soundtrack using an old-school tracker on his laptop.

    Example

    While modern digital audio workstations are more popular, some electronic musicians still prefer the rigid, mathematical workflow of a tracker.
    • sequencer
Origin

From track + -er.

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