English Explanatory Dictionary

horizon

English dictionary entry

Meanings

noun
  1. The visible horizontal line (in all directions) where the sky appears to meet the earth in the distance.
  2. The range or limit of one's knowledge, experience or interest; a boundary or threshold.
  3. The range or limit of any dimension in which one exists.
  4. A specific layer of soil, or stratum
  5. A cultural sub-period or level within a more encompassing time period.
  6. Any level line or surface.
  7. The point at which a computer chess algorithm stops searching for further moves.

Pronunciation

/həˈɹaɪ.zən/ /hɵˈrajzan/ En-us-horizon.ogg

Word forms

horizon horizons

Etymology

Inherited from Middle English orisonte, orisoun, from Middle French horizon, horizonte, from Old French orisonte, orison, via Latin horizōn, from Ancient Greek ὁρίζων (horízōn), from ὅρος (hóros, “boundary”).

Synonyms

skysill skyline

Related words

horizontal aorist vertical

Derived words

absolute horizon A-horizon antihorizon apparent horizon archaeological horizon archeological horizon artificial horizon Cauchy horizon circumhorizon comoving horizon cosmic event horizon cosmic light horizon cosmological event horizon cosmological horizon dip of the horizon dynamical horizon event horizon Greisen-Zatsepin-Kuzmin horizon GZK horizon horizonal horizon effect horizon glass horizonless horizon problem horizonward horizonwards Hubble horizon isolated horizon Killing horizon marker horizon moral event horizon on the horizon particle horizon quicksilver horizon radar horizon rational horizon split horizon subhorizon superhorizon time horizon unhorizoned
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