English Explanatory Dictionary

Earth Day

English dictionary entry

Meanings

name
  1. April 22; Created in 1970, global day of observance of the need to protect the earth.
  2. March 21st.
noun
  1. A day in Earth time; the period it takes planet Earth to revolve once; a period of 24 hours.

Word forms

Earth Day Earth days

Related words

Arbor Day ♻
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