scan — English Dictionary

scan
Pronunciations (4)
  • /skæn/
    Pronunciation notes
    • General-American
    • Received-Pronunciation
  • /skan/
    Pronunciation notes
    • British
    • Northern-England
    • Scotland
    • Southern
    • Standard
    • Wales
  • /skɛn/
    Pronunciation notes
    • New-Zealand
  • skæn

Verb

  1. To examine sequentially, carefully, or critically; to scrutinize; to behold closely.

    Usage
    • Transitive
    Examples

    She scanned the passage carefully but could not find what she was looking for.

    He scanned the horizon.

    More examples (3)

    Yet the incident did not in the least diminish my respect for my teacher. I was by nature blind to the faults of elders. Later I came to know of many other failings of this teacher, but my regard for him remained the same. For I had learnt to carry out the orders of elders, not to scan their actions.

    Slowly, he scanned the horizon, listening, watching for the signs he had been taught.

    As the 1857 to Manchester Piccadilly rolls in, I scan the windows and realise there are plenty of spare seats, so I hop aboard. The train is a '221'+'220' combo to allow for social distancing - a luxury on an XC train as normally you're playing sardines, so I make the most of it.

  2. To examine sequentially, carefully, or critically; to scrutinize; to behold closely. To inspect, analyse or go over, often to find something.

    Usage
    • Transitive
    Examples

    to scan the hard drive for errors

  3. To look about for; to look over quickly.

    Usage
    • Transitive
  4. To look about for; to look over quickly. To perform lexical analysis; to tokenize.

    Usage
    • Transitive
  5. To create an image of something with the use of a scanner.

    Usage
    • Transitive
    Examples

    to scan a photograph

    to scan internal organs by means of computed tomography

    More examples (1)

    Pencil drawings don't scan very well.

  6. To read with an electronic device.

    Usage
    • Transitive
    Examples

    to scan a barcode

    to scan a QR code

    More examples (1)

    In the dispute with the RMT about scanning tickets, Jackson said it was the right thing to do to pay conductors something to scan tickets. Northern pays two pence per scan, Jackson noted, adding that ticket scanning helps to cut fraud and increase staff visibility.

  7. To mount by steps; to go through with step by step.

    Usage
    • Obsolete
    • Transitive
    Examples
    More examples (1)

    But ere these matchless heights I dare to scan, / There is a spot should not be pass'd in vain,— / Morat ! the proud, the patriot field ! where man / May gaze on ghastly trophies of the slain,[…]

  8. To read or mark so as to show a specific metre.

    Usage
    • Transitive
    Examples
    More examples (1)

    In such cases as these, almost any one with a good ear will "scan" the verse correctly enough without instruction. It is not proposed to give here a list of Shakspere's slurred and contracted words; […]

  9. To conform to a metrical structure.

    Usage
    • Intransitive
    Examples

    You're right, sir, it doesn't scan very well in the English, but in the Gaelic it's sheer poetry. Have you the Gaelic?

Noun

  1. A close investigation. Of written things, a careful reading.

    Synonyms
  2. A close investigation. Of written things, a cursory reading: a skim.

    Synonyms
  3. An instance of scanning.

    Examples

    The operators vacated the room during the scan.

    More examples (1)

    In the dispute with the RMT about scanning tickets, Jackson said it was the right thing to do to pay conductors something to scan tickets. Northern pays two pence per scan, Jackson noted, adding that ticket scanning helps to cut fraud and increase staff visibility.

  4. The result or output of a scanning process.

    Examples

    The doctors looked at the scans and made a diagnosis.

  5. A higher-order function that applies a binary operation to a sequence of values, starting with an accumulator, and returns a new sequence with the results.

Noun

  1. the act of scanning; systematic examination of a prescribed region

    Broader terms
    Examples

    he made a thorough scan of the beach with his binoculars

  2. an image produced by scanning

    Synonyms
    Examples

    he analyzed the brain scan

    you could see the tumor in the CAT scan

Verb

  1. examine minutely or intensely

    Broader terms
    Examples

    the surgeon scanned the X-ray

  2. examine hastily

    Broader terms
    Examples

    She scanned the newspaper headlines while waiting for the taxi

  3. make a wide, sweeping search of

    Broader terms
    Examples

    The beams scanned the night sky

  4. conform to a metrical pattern

    Broader terms
  5. move a light beam over; in electronics, to reproduce an image

    Broader terms
  6. read metrically

    Broader terms
    Examples

    scan verses

  7. obtain data from magnetic tapes or other digital sources

    Synonyms
    Examples

    This dictionary can be read by the computer

Word forms
scansscanningscannedscannedscans

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