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Earth day. In DICTIOUS you will not only get to know all the dictionary meanings for the word
Earth day, but we will also tell you about its etymology, its characteristics and you will know how to say
Earth day in singular and plural. Everything you need to know about the word
Earth day you have here. The definition of the word
Earth day will help you to be more precise and correct when speaking or writing your texts. Knowing the definition of
Earth day, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
English
Noun
Earth day (plural Earth days)
- (science fiction) A day in Earth time; the period it takes planet Earth to revolve once; a period of 24 hours.
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