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Shadow vs Echo - What's the difference?

shadow | echo |

As nouns the difference between shadow and echo

is that shadow is a dark image projected onto a surface where light (or other radiation) is blocked by the shade of an object while echo is echo (a reflected sound that is heard again by its initial observer).

As a verb shadow

is to block light or radio transmission.

shadow

English

(wikipedia shadow)

Noun

(en noun)
  • A dark image projected onto a surface where light (or other radiation) is blocked by the shade of an object.
  • *
    • , title=(The Celebrity), chapter=1 , passage=The stories did not seem to me to touch life. […] They left me with the impression of a well-delivered stereopticon lecture, with characters about as life-like as the shadows on the screen, and whisking on and off, at the mercy of the operator.}}
  • Relative darkness, especially as caused by the interruption of light; gloom, obscurity.
  • * Denham
    • Night's sable shadows from the ocean rise.
  • * Spenser
    • In secret shadow from the sunny ray, / On a sweet bed of lilies softly laid.
  • (obsolete) A reflected image, as in a mirror or in water.
    • (Shakespeare)
  • That which looms as though a shadow.
  • *
    • Hepaticology, outside the temperate parts of the Northern Hemisphere, still lies deep in the shadow' cast by that ultimate "closet taxonomist," Franz Stephani—a ghost whose ' shadow falls over us all.
  • A small degree; a shade.
  • * Bible, James i. 17
    • no variableness, neither shadow of turning
  • An imperfect and faint representation.
    • He came back from war the shadow of a man.
  • * Bible, Hebrews x. 1
    • the law having a shadow of good things to come
  • * Milton
    • [types] and shadows of that destined seed
  • One who secretly or furtively follows another.
  • * Milton
    • Sin and her shadow Death
  • A type of lettering form of word processors that makes a cubic effect.
  • An influence, especially a pervasive or a negative one.
  • *
  • A spirit; a ghost; a shade.
  • * Shakespeare
    • Hence, horrible shadow !
  • (obsolete, Latinism) An uninvited guest accompanying one who was invited.
    • (Nares)

    Usage notes

    * A person (or object) is said to "cast", "have", or "throw" a shadow if that shadow is caused by the person (either literally, by eclipsing a light source, or figuratively). The shadow may then be described as the shadow "cast" or "thrown" by the person, or as the shadow "of" the person, or simply as the person's shadow.

    Derived terms

    * backshadowing * foreshadowing * rain shadow * shadow acting * shadow boxing * shadow cabinet * shadow government * shadow minister * shadow play * shadow price * sideshadowing * unshadow

    Verb

    (en verb)
  • To block light or radio transmission.
    • Looks like that cloud's going to shadow us.
  • (espionage) To secretly or discreetly track or follow another, to keep under surveillance.
  • To accompany a professional during the working day, so as to learn about an occupation one intends to take up.
  • (programming) To make an identifier, usually a variable, inaccessible by declaring another of the same name within the scope of the first.
  • (computing) To apply the shadowing process to (the contents of ROM).

    • Derived terms

    * overshadow

    echo

    English

    Alternative forms

    * (l) (obsolete) * (l) (obsolete)

    Noun

    (en-noun)
  • A reflected sound that is heard again by its initial observer.
  • * Shakespeare
    • The babbling echo mocks the hounds.
  • * Alexander Pope
    • The woods shall answer, and the echo ring.
  • *
  • * {{quote-magazine, year=2013, month=May-June, author= William E. Conner
    • , title= An Acoustic Arms Race , volume=101, issue=3, page=206-7, magazine=(American Scientist) , passage=Earless ghost swift moths become “invisible” to echolocating bats by forming mating clusters close (less than half a meter) above vegetation and effectively blending into the clutter of echoes that the bat receives from the leaves and stems around them.}}
  • (figurative) Sympathetic recognition; response; answer.
  • * Fuller
    • Fame is the echo of actions, resounding them.
  • * Robert Louis Stevenson
    • Many kind, and sincere speeches found an echo in his heart.
  • (computing) The displaying on the command line of the command that has just been executed.
  • The letter E in the ICAO spelling alphabet.

    • Derived terms

    * echoacousia * echo boomer * echocardiogram, echocardiography * echogenic, echogenicity * echogram * echolalia * echo organ * echopathy * echophonocardiography, echophony * echoplex * echo-ranging * echo sounder * echo stop * echotexture * hypoechoic

    Verb

    (es)
  • (of a sound or sound waves) To reflect off of a surface and return.
  • (by extension) To repeat back precisely what another has just said: to copy in the imitation of a natural echo.
  • * (John Dryden)
    • Those peals are echoed by the Trojan throng.
  • * Keble
    • The wondrous sound / Is echoed on forever.
  • (by extension) To repeat (another's speech, opinion etc.).
  • * {{quote-magazine, year=2013, month=July-August, author= Sarah Glaz
    • , title= Ode to Prime Numbers , volume=101, issue=4, magazine=(American Scientist) , passage=Some poems, echoing the purpose of early poetic treatises on scientific principles, attempt to elucidate the mathematical concepts that underlie prime numbers. Others play with primes’ cultural associations. Still others derive their structure from mathematical patterns involving primes.}}

    Synonyms

    * See also

    Anagrams

    * English nouns with irregular plurals ----