Earth Day

proper noun

April 22; Created in 1970, global day of observance of the need to protect the earth.

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Meanings

Earth Day1

proper noun
  1. North AmericancountriesApril 22; Created in 1970, global day of observance of the need to protect the earth.
  2. USobsoleteMarch 21st.

Earth day2

nounEarth day (plural Earth days)

plural Earth days

  1. literatureA day in Earth time; the period it takes planet Earth to revolve once; a period of 24 hours.

Translations

Arabic يَوْم اَلْأَرْض
  • يَوْم اَلْأَرْض (yawm al-ʔarḍ)global day of observance of the need to protect the earth
Chinese Mandarin 世界地球日, 地球日
  • 世界地球日 (Shìjiè Dìqiúrì)global day of observance of the need to protect the earth
  • 地球日 (Dìqiúrì)global day of observance of the need to protect the earth
Finnish maan päivä
  • maan päiväglobal day of observance of the need to protect the earth
French Jour de la Terre
  • Jour de la Terreglobal day of observance of the need to protect the earth
German Tag der Erde
  • Tag der Erdeglobal day of observance of the need to protect the earth
Japanese アースデイ, 地球の日
  • アースデイ (Āsu-dei)global day of observance of the need to protect the earth
  • 地球の日 (Chikyū no hi)global day of observance of the need to protect the earth
Korean 지구의 날
  • 지구의 날 (Jigu-ui nal)global day of observance of the need to protect the earth
Portuguese Dia da Terra
  • Dia da Terraglobal day of observance of the need to protect the earth
Russian День Земли́
  • День Земли́ (Denʹ Zemlí)global day of observance of the need to protect the earth
Spanish Día de la Tierra
  • Día de la Tierraglobal day of observance of the need to protect the earth
Swahili Siku ya Dunia
  • Siku ya Duniaglobal day of observance of the need to protect the earth
Welsh Dydd y Ddaear
  • Dydd y Ddaearglobal day of observance of the need to protect the earth
Cite this entry
APA

Earth Day. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Earth%20Day

MLA

“Earth Day.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Earth%20Day. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Earth Day,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Earth%20Day.

Source: Earth Day on Wiktionary, CC BY-SA 4.0.