noun · 3 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
General-American:/əˈvɛnt həˈɹaɪ.zən/
General-American:/-zɪn/
General-American:[əˈvɛɾ̃ həˈɹaɪ.zən]
General-American:[əˈvɛn -]
General-American:[-zɪn]
US:Recorded audio is listed in the source snapshot.
1
noun
Meaning 1
The gravitational sphere of a black hole within which the escape velocity is greater than the speed of light.
Definition source: English Wiktionary via Wiktextract
Topics: astrophysics
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
The furthest distance in the past of the universe from which light signals from an event can reach an observer at later times.
Definition source: English Wiktionary via Wiktextract
Topics: astrophysics
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A point of no return.
Definition source: English Wiktionary via Wiktextract
Usage: broadly, figuratively
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
History
Etymology
No etymology was provided for this word.
Across languages
Translations
75 source translations are retained for this English entry.
Afrikaans:
waarnemingshorison
— gravitational sphere within which light cannot escape
Albanian:
horizont i ngjarjes
— gravitational sphere within which light cannot escape
Albanian:
horizont i ngjarjeve
— gravitational sphere within which light cannot escape
Arabic:
أُفُق اَلْحَدَث
(ʔufuq al-ḥadaṯ)
— gravitational sphere within which light cannot escape
Armenian:
իրադարձությունների հորիզոն
(iradarjutʻyunneri horizon)
— gravitational sphere within which light cannot escape
Asturian:
horizonte de sucesos
— gravitational sphere within which light cannot escape
Azerbaijani:
hadisə üfüqü
— gravitational sphere within which light cannot escape
Basque:
gertaeren muga
— gravitational sphere within which light cannot escape
Belarusian:
гарызонт падзей
(haryzónt padzjej)
— gravitational sphere within which light cannot escape
Bengali:
ঘটনা দিগন্ত
(ghoṭona digonto)
— gravitational sphere within which light cannot escape
Bulgarian:
хоризонт на събитията
(horizont na sǎbitijata)
— gravitational sphere within which light cannot escape
Burmese:
ဖြစ်ရပ် မိုးကုတ်စက်ဝိုင်း
(hpracrap mui:kutcak-wuing:)
— gravitational sphere within which light cannot escape
Catalan:
horitzó d'esdeveniments
— gravitational sphere within which light cannot escape
Chinese Cantonese:
事界
(si6 gaai3)
— gravitational sphere within which light cannot escape
Chinese Mandarin:
事件視界 /事件视界
(shìjiàn shìjiè)
— gravitational sphere within which light cannot escape
Chinese Mandarin:
事件穹界
(shìjiàn qióngjiè)
— gravitational sphere within which light cannot escape
Chinese Mandarin:
事界
(shìjiè)
— gravitational sphere within which light cannot escape
Czech:
horizont událostí
— gravitational sphere within which light cannot escape
Danish:
begivenhedshorisont
— gravitational sphere within which light cannot escape
Dutch:
waarnemingshorizon
— gravitational sphere within which light cannot escape
Esperanto:
eventa horizonto
— gravitational sphere within which light cannot escape
Estonian:
sündmuste horisont
— gravitational sphere within which light cannot escape
Faroese:
hendingartrom
— gravitational sphere within which light cannot escape
Finnish:
tapahtumahorisontti
— gravitational sphere within which light cannot escape
French:
horizon des événements
— gravitational sphere within which light cannot escape
Georgian:
მოვლენათა ჰორიზონტი
(movlenata horizonṭi)
— gravitational sphere within which light cannot escape
German:
Ereignishorizont
— gravitational sphere within which light cannot escape
Greek:
ορίζοντας γεγονότων
(orízontas gegonóton)
— gravitational sphere within which light cannot escape
Hebrew:
אופק אירועים
— gravitational sphere within which light cannot escape
Hindi:
घटना क्षितिज
(ghaṭnā kṣitij)
— gravitational sphere within which light cannot escape
Hungarian:
eseményhorizont
— gravitational sphere within which light cannot escape
Icelandic:
sjónhvörf
— gravitational sphere within which light cannot escape
Icelandic:
skynmörk
— gravitational sphere within which light cannot escape
Indonesian:
horizon peristiwa
— gravitational sphere within which light cannot escape
Interlingua:
horizonte de eventos
— gravitational sphere within which light cannot escape
Irish:
léaslíne theagmhais
— gravitational sphere within which light cannot escape
Italian:
orizzonte degli eventi
— gravitational sphere within which light cannot escape
Japanese:
事象の地平面
(jishō no chiheimen)
— gravitational sphere within which light cannot escape
Kazakh:
оқиға көкжиегі
(oqiğa kökjiegı)
— gravitational sphere within which light cannot escape
Korean:
사상(事象)의 지평선
(sasang-ui jipyeongseon)
— gravitational sphere within which light cannot escape
Central Kurdish:
ئاسۆی ڕووداو
(asoy rûdaw)
— gravitational sphere within which light cannot escape
Latin:
horizon eventuum
— gravitational sphere within which light cannot escape
Latvian:
notikumu horizonts
— gravitational sphere within which light cannot escape
Lithuanian:
įvykių horizontas
— gravitational sphere within which light cannot escape
Macedonian:
хоризонт на настани
(horizont na nastani)
— gravitational sphere within which light cannot escape
Malayalam:
സംഭവചക്രവാളം
(sambhavacakravāḷaṁ)
— gravitational sphere within which light cannot escape
Maltese:
orizzont avveniment
— gravitational sphere within which light cannot escape
Norwegian Bokmål:
hendelseshorisont
— gravitational sphere within which light cannot escape
Norwegian Nynorsk:
hendingshorisont
— gravitational sphere within which light cannot escape
Norwegian Nynorsk:
hendingsrand
— gravitational sphere within which light cannot escape
Norwegian Nynorsk:
hendelseshorisont
— gravitational sphere within which light cannot escape
Persian:
افق رویداد
(ofoq-e ruydâd)
— gravitational sphere within which light cannot escape
Polish:
horyzont zdarzeń
— gravitational sphere within which light cannot escape
Portuguese:
horizonte de eventos
— gravitational sphere within which light cannot escape
Punjabi:
ਇਵੈਂਟ ਹੌਰਿਜ਼ਨ
(ivaiṇṭ haurizan)
— gravitational sphere within which light cannot escape
Romanian:
orizontul evenimentelor
— gravitational sphere within which light cannot escape
Romanian:
orizont de evenimente
— gravitational sphere within which light cannot escape
Russian:
горизо́нт собы́тий
(gorizónt sobýtij)
— gravitational sphere within which light cannot escape
Russian:
сфе́ра Шва́рцшильда
(sféra Švárcšilʹda)
— gravitational sphere within which light cannot escape
Serbo-Croatian:
хоризонт догађаја
— gravitational sphere within which light cannot escape
Serbo-Croatian:
horizont događaja
— gravitational sphere within which light cannot escape
Slovak:
horizont udalostí
— gravitational sphere within which light cannot escape
Slovene:
horizont dogodkov
— gravitational sphere within which light cannot escape
Slovene:
dogódkovno obzórje
— gravitational sphere within which light cannot escape
Spanish:
horizonte de sucesos
— gravitational sphere within which light cannot escape
Spanish:
horizonte de eventos
— gravitational sphere within which light cannot escape
Swedish:
händelsehorisont
— gravitational sphere within which light cannot escape
Tamil:
நிகழ்வெல்லை
(nikaḻvellai)
— gravitational sphere within which light cannot escape
Thai:
ขอบฟ้าเหตุการณ์
(kòp-fáa-hàyt-gaan)
— gravitational sphere within which light cannot escape
Turkish:
olay ufku
— gravitational sphere within which light cannot escape
Ukrainian:
горизонт подій
(horyzont podij)
— gravitational sphere within which light cannot escape
Urdu:
افق وقیعہ
— gravitational sphere within which light cannot escape
Uzbek:
voqealar gorizonti
— gravitational sphere within which light cannot escape
Vietnamese:
chân trời sự kiện
— gravitational sphere within which light cannot escape
Welsh:
gorwel digwyddiad
— gravitational sphere within which light cannot escape