English Reference
noun · verb · adjective

shadow

n. · v. · adj.
US /ˈʃæˌdoʊ/ UK /ʃˈædəʊ/ shad·ow UK spelling shadowed, shadows

  1. 01 A2 Elementary

    n.a dark shape on a surface that happens when an object blocks the light.

    n.a dark area or shape produced by an object coming between rays of light and a surface.

    Simple

    The tall trees cast long shadows across the grass as the sun went down.

    In context

    The cyclist noticed his own shadow stretching far ahead of him on the pavement during the late afternoon ride.

  2. 02 B2 Upper Intermediate

    n.a very small amount of something.

    n.the slightest trace or a very small degree of a quality or feeling.

    Simple

    There was not a shadow of a doubt that he was telling the truth.

    In context

    The prosecutor argued that there was not a shadow of evidence to support the defendant's alibi for the night in question.

  3. 03 B2 Upper Intermediate

    n.a feeling of sadness or a bad influence that spoils a situation.

    n.an unhappy or gloomy influence that diminishes the quality of an event or period of time.

    Simple

    The news of the accident cast a shadow over the whole party.

    In context

    The sudden economic downturn cast a long shadow over the administration's otherwise successful first year in office.

  4. 04 B2 Upper Intermediate

    v.to follow someone closely and secretly to watch where they go.

    v.to follow and observe someone closely and typically secretly.

    Simple

    The private detective shadowed the suspect for three days.

    In context

    Intelligence officers shadowed the diplomat throughout the conference, documenting every unofficial meeting he attended.

  5. 05 B2 Upper Intermediate

    v.to follow someone at their job to learn how to do it.

    v.to accompany a person during their work day to gain experience or understanding of a profession.

    Simple

    The medical student spent the week shadowing a senior surgeon.

    In context

    New recruits are required to shadow an experienced manager for a month before they are allowed to handle client accounts independently.

  6. 06 C1 Advanced British EnglishFormal Politics

    adj.describing a group of politicians in the opposition who act like the real government.

    adj.relating to the main opposition party's counterparts to the government's cabinet ministers.

    Simple

    The shadow health minister criticised the government's new hospital plan.

    In context

    The Shadow Cabinet met early this morning to draft a formal response to the Chancellor's latest budget proposal.

  7. 07 C2 Proficiency Technical Computing

    v.to hide a piece of data by using the same name for a new one.

    v.to make an identifier inaccessible by declaring another with the same name in a more local scope.

    Simple

    Be careful not to shadow the global variable inside your function.

    In context

    The compiler issued a warning because the local variable shadowed a field in the outer class, potentially leading to logic errors.

Usage shadow housing · shadowed craters

The moon blocks the sun and casts a shadow across the Earth.

The Guardian· 13 Aug 2026

It occurs when one object enters the shadow of another.

ScienceDaily· 13 Aug 2026
This entry
Level B2 · Upper Intermediate
Frequency Common
Updated