Earth Day
Americannoun
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.
The so-called Refugio oil spill of 2015 evoked memories of the Santa Barbara spill of 1969, which turbocharged a nascent environmental movement and helped launch Earth Day as an annual event.
From Los Angeles Times • Apr. 21, 2026
The environmental group has been conducting habitat restoration in the reserve since 2019, with this weekend’s event also a late celebration of Earth Day, after a prior event was rained out.
From Los Angeles Times • May 25, 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
We were even collaborating with other students to host our school’s first Earth Day celebration, where students could share their concerns and brainstorm ideas to help make a difference in our community.
From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
