Showing results for Earth Day.

Earth Day

American

[urth dey] / ˈɜrθ ˌdeɪ /

noun

April 22, a day set aside globally for raising awareness about environmental issues and participating in events to help protect the environment.

Etymology

Origin of Earth Day

First recorded in 1970

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He was arrested on Earth Day, which was Tuesday.

From Los Angeles Times • Apr. 24, 2025

Indeed, Earth Day was created with a bipartisan spirit that resonated across party lines.

From Los Angeles Times • Apr. 22, 2025

Just in time for National Parks Week and Earth Day, no less.

From Slate • Apr. 22, 2025

No wonder, then, that Americans planned nationwide Earth Day protests.

From Slate • Apr. 22, 2025

She is a part of the Earth Day Club here in high school, and that is where she meets the boys.

From "The Perks of Being a Wallflower" by Stephen Chbosky

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023