follow Dictionary.com

Write a Super Short Story to win an iPod!

earth day

noun

a day's observance of the need to protect the Earth's environment, in many countries on April 22

Examples

The first Earth Day was organized in 1970 to promote the ideas of ecology, encourage respect for life on earth, and highlight growing concern over pollution of the soil, air, and water.

Word Origin

1969

Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
Cite This Source
Word Origin and History for earth day

Earth Day

as an annual ecological awareness event on April 22, dates to 1970; the idea and the name formed in 1969.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Encyclopedia Article for earth day

Earth Day

annual celebration honouring the achievements of the environmental movement and raising awareness of the importance of long-term ecological sustainability. Earth Day is celebrated in the United States on April 22; throughout the rest of the world it is celebrated on either April 22 or the day the vernal equinox occurs.

Learn more about Earth Day with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Word Value for earth

8
7
Scrabble Words With Friends