equinox

Etymology
From, , , from , (modern 🇨🇬), or from its  , , from , from  +  (ultimately derived from ) +. The Latin word, ultimately adopted in Middle English and modern English, displaced 🇨🇬 (modern ).

The rare alternative form  treats equinox as if it were a Latin word; the plural of  is.

Noun

 * 1) One of two times in the year (one in March and the other in September) when the length of the day and the night are equal, which occurs when the sun is directly overhead at the equator; this marks the beginning of spring in one hemisphere and autumn in the other.
 * 2)  The circumstance of a twenty-four hour time period having the day and night of equal length.
 * 3)  One of the two points in space where the apparent path of the Sun intersects with the equatorial plane of the Earth.
 * 4)  A  once thought to occur more frequently around the time of an equinox (sense 1), now known to be a misconception; an equinoctial gale.
 * 5)  A ; also, the Earth's equator.
 * 1)  The circumstance of a twenty-four hour time period having the day and night of equal length.
 * 2)  One of the two points in space where the apparent path of the Sun intersects with the equatorial plane of the Earth.
 * 3)  A  once thought to occur more frequently around the time of an equinox (sense 1), now known to be a misconception; an equinoctial gale.
 * 4)  A ; also, the Earth's equator.
 * 1)  The circumstance of a twenty-four hour time period having the day and night of equal length.
 * 2)  One of the two points in space where the apparent path of the Sun intersects with the equatorial plane of the Earth.
 * 3)  A  once thought to occur more frequently around the time of an equinox (sense 1), now known to be a misconception; an equinoctial gale.
 * 4)  A ; also, the Earth's equator.
 * 1)  A  once thought to occur more frequently around the time of an equinox (sense 1), now known to be a misconception; an equinoctial gale.
 * 2)  A ; also, the Earth's equator.
 * 1)  A ; also, the Earth's equator.
 * 1)  A ; also, the Earth's equator.
 * 1)  A ; also, the Earth's equator.

Translations

 * Afrikaans: dag-en-nag-ewening
 * Albanian: ekuinoks
 * Arabic: اِعْتِدَال
 * Armenian:
 * Asturian: equinocciu
 * Azerbaijani: ekinoks, gecə-gündüzün bərabərliyi
 * Banjarese: ekuinoks
 * Basque: ekinokzio
 * Belarusian: раўнадзе́нства
 * Bengali: বিষুব
 * Breton:
 * Bulgarian: равноде́нствие
 * Catalan:
 * Chinese:
 * Mandarin:, ,
 * Czech:, ekvinokce, ekvinokcium
 * Danish:
 * Dutch:, ,
 * Esperanto:, tagnoktegaleco
 * Estonian: pööripäev,
 * Faroese: javndøgur
 * Finnish:
 * French:
 * Galician:
 * Georgian: ბუნიაობა, ბუნიობა, დღეღამტოლობა
 * German:, Tagnachtgleiche,
 * Greek:
 * Ancient Greek: ἰσημερία
 * Gujarati: સમપ્રકાશીય ઘટના કે વિષુવકાલ
 * Hebrew: נקודת השוויון
 * Hindi:
 * Hungarian:
 * Icelandic: jafndægur
 * Ido:
 * Indonesian:
 * Interlingua: equinoctio
 * Irish: cónocht
 * Italian:
 * Japanese:
 * Kannada: ವಿಷುವತ್ ಸಂಕ್ರಾಂತಿ
 * Khmer: សមភាពរាត្រី, សមរាត្រី, វិសុវ័ត
 * Korean:
 * Lao: ວິສຸວັດ
 * Latin: aequinoctium
 * Latvian:
 * Lithuanian: ekvinokcija, lygiadienis
 * Luxembourgish: equinoxe
 * Macedonian: рамноде́ница, рамнодне́вица
 * Malagasy:
 * Malay: ekuinoks
 * Malayalam:
 * Maori: pahore o Rehua
 * Norman: étchinosse, êtchinnoxe
 * Norwegian:
 * Bokmål: jevndøgn
 * Nynorsk: jamdøgn
 * Occitan:
 * Old English: efnniht
 * Old Frisian: evennacht
 * Old Norse: jafndœgri
 * Persian: برابران,
 * Polish: ,
 * Portuguese:
 * Prakrit: 𑀯𑀺𑀲𑀼𑀯
 * Punjabi: ਸਮਰਾਤ
 * Romanian: ,
 * Russian:
 * Sanskrit:
 * Sardinian: ecuinòtziu
 * Scottish Gaelic: co-fhad-thràth
 * Serbo-Croatian:
 * Cyrillic: равно̀дневица, равнодневница
 * Roman:, ravnodnevnica
 * Slovak: ekvinokcium, rovnodennosť
 * Slovene: ekvinokcij,
 * Spanish:
 * Swahili: ikwinoksi, sikusare
 * Swedish:
 * Tagalog: ekinoksyo
 * Tajik: эътидол
 * Tamil: சம இரவு நாள், விடுவம்
 * Telugu: విషువత్తు
 * Thai: วิษุวัต
 * Turkish:
 * Ukrainian: рівноде́ння
 * Urdu: اِعْتِدال
 * Uzbek:
 * Vietnamese: điểm phân
 * Volapük:
 * Welsh: cyhydnos


 * Finnish:


 * Cebuano: kilingan
 * Finnish: tasauspiste

Etymology
Borrowed from, from.